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![Cal Spas C1000R1B Circuit Board (ELE09100000) — Genuine Replacement Part
Your Cal Spa deserves a reliable fix. The Cal Spas C1000R1B Circuit Board (Part #ELE09100000) is the exact replacement control board your spa needs to get back up and running — managing your pumps, heater, and sensors with precision-engineered Balboa electronics.
Shop and order at Western Tub and Pool — call us at 1-855-248-0777 or email fixmytub@gmail.com.
[Shop Now] [Call Us: 1-855-248-0777]
Why Choose the Cal Spas C1000R1B Circuit Board?
OEM-Compatible Balboa Electronics
This board is manufactured by Balboa Water Group — one of the most trusted names in spa electronics. It delivers the same reliable control logic as your original board, with no guesswork and no retrofitting.
Complete Spa Control in One Assembly
The ELE09100000 consolidates your spa's core control functions into a single, robust PCB — coordinating your pump(s), heater, and sensors through an integrated power supply, relay system, and signal processor.
Built for Hot Tub Environments
Engineered to withstand the thermal fluctuations and voltage swings common in spa settings, this board is built tough for the long haul.
Direct Drop-In Replacement
Compatible with chip revisions C1000R1A and C1000R1B (note: newer revisions may end in any letter). Always verify your chip ID number before ordering.
New Condition
Every unit sold by Western Tub and Pool is brand new — not refurbished, not repaired.
Product Specifications
Specification
Detail
Part Number
ELE09100000
Chip Number
C1000R1B (also compatible with C1000R1A; newer revisions may end in any letter)
Balboa Part Number
50868
Brand
Balboa Water Group (for Cal Spas)
Model Series
C1000
Condition
New
Weight
Approximately 1.5 lbs
Warranty
30-Day Limited Warranty (Cal Spas)
Important Note: Physical board dimensions are not published by the manufacturer. If you need to confirm fitment, please send us a photo of your existing board — we're happy to help verify compatibility before you order.
Compatible Cal Spas Hot Tub Models
The C1000R1B Circuit Board (ELE09100000) is used across a wide range of Cal Spas hot tubs equipped with the C1000 control system, including models from the following series:
Escape Series
Pacifica EC-735L, Pacifica EP-761L, Pacifica EC-751L, Tropical EC-735B, Tropical EP-761B, Tropical EC-751B, Atlantic EC-835L, Atlantic EP-861L, Atlantic EC-861L, Bel Air EC-835B, Bel Air EP-861B, Malibu EC-754DL, Malibu EP-760DL, Windsor EC-852L, Windsor EP-860L, Avalon EC-864L, Avalon EP-864L, Cancun EC-864B, Cancun EP-864B, El Grande EC-947E, Newporter EC-948L
Patio Spa Series
Round PZ-511R, Balboa PZ-517L, Vista PZ-617T, Kona PZ-525L, Hawaiian PZ-621L, Pacifica PZ-722L, Tropical PZ-722B
Patio Plus Series
Balboa PPZ-525L, Vista PPZ-628T, Kona PPZ-537L, Hawaiian PPZ-631L, Pacifica PPZ-732L, Tropical PPZ-732B
Platinum Series
Pacifica PL-760L, Tropical PL-760B, Atlantic PL-860L, Bel Air PL-861B, Atlantic PL-880L, Bel Air PL-881B
Platinum Plus Series
Huntington PPL7L, Laguna PPL7B, La Jolla PPL8L, Carmel PPL8B
Swim Pro / Fitness Series
Fitness F-1222, Swim Pro F-1325, Freestyle F-1420, Freestyle F-1437, Champion F-1640, Olympian F-1770
Inground Spa Series
Round IG-401, Octagon IG-402, Square IG-403, Triangular IG-404, Octagon XL IG-405, Kidney IG-406, Round IGJ-401-16, Octagon IGJ-402-16, Square IGJ-403-26, Triangular IGH-404-16, Octagon XL IGJ-405-26, Kidney IGH-406-16
Not sure if this fits your spa? Check the chip number printed on your existing circuit board, and look for the Balboa 5-digit number on the white sticker (it always starts with "5"). Still unsure? Contact our team — we'll help you confirm the right part.
Frequently Asked Questions
How do I know if ELE09100000 is the right circuit board for my hot tub?
Check the chip ID number printed on your existing circuit board. If it reads C1000R1A, C1000R1B, or any other C1000R1 revision (ending in any letter), this board is your match. You can also look for the Balboa 5-digit white sticker number — it should read 50868. If you're still unsure, send us a photo of your old board to fixmytub@gmail.com and we'll confirm compatibility for you.
What does this circuit board control?
The C1000R1B board manages your spa's core functions — including pump operation, heater control, and sensor signal processing. It integrates a power supply, relay system, and signal processor into one compact assembly.
Is this a new part or a refurbished one?
This is a brand-new circuit board — not rebuilt or refurbished.
What is the warranty on this board?
Cal Spas offers a 30-day limited warranty on circuit boards. Please note that this part is non-returnable and is eligible for exchange under warranty only.
What if I can't find my part number?
No problem at all. Send an email to fixmytub@gmail.com with:
Your hot tub's make and model
Your spa's serial number
A photo of your existing circuit board (if available)
Our team will identify the correct part and get back to you promptly.
Can I install this circuit board myself?
Printed circuit board replacement instructions are available from Balboa Water Group. However, if you're not comfortable working with spa electronics, we recommend consulting a qualified spa technician. Have questions before you begin? Give us a call at 1-855-248-0777.
Do you carry other Cal Spas circuit boards?
Yes. Western Tub and Pool carries an extensive range of Cal Spas circuit boards and replacement parts. Browse our full catalog online or contact us directly for assistance finding a specific board.
Can't Find Your Part? We Can Help.
Hard-to-find spa parts are our specialty. If you're not sure which circuit board fits your Cal Spa — or if your model isn't listed above — reach out to our team and we'll track it down for you.
To help us find the right part, please include:
Your hot tub's make and model name
Your spa's serial number (Cal Spas serial numbers follow the format: YYS-XXXXXX, where "YY" = year of manufacture)
Your existing circuit board chip number (if readable)
Photos of your current board and/or equipment bay
Email: fixmytub@gmail.com
Phone: 1-855-248-0777
Shop and Order at Western Tub and Pool
Get the Cal Spas C1000R1B Circuit Board (ELE09100000) shipped straight to your door. Whether you're a seasoned DIYer or tackling your first spa repair, our team is here to make sure you get the right part — the first time.
[Order Now] [Call 1-855-248-0777] [Email fixmytub@gmail.com]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/1280x1280/products/4435/6689/CSE09100000__26311.1784398883.PNG?c=2 "Cal Spas C1000R1B Circuit Board (ELE09100000) — Genuine Replacement Part
Your Cal Spa deserves a reliable fix. The Cal Spas C1000R1B Circuit Board (Part #ELE09100000) is the exact replacement control board your spa needs to get back up and running — managing your pumps, heater, and sensors with precision-engineered Balboa electronics.
Shop and order at Western Tub and Pool — call us at 1-855-248-0777 or email fixmytub@gmail.com.
[Shop Now] [Call Us: 1-855-248-0777]
Why Choose the Cal Spas C1000R1B Circuit Board?
OEM-Compatible Balboa Electronics
This board is manufactured by Balboa Water Group — one of the most trusted names in spa electronics. It delivers the same reliable control logic as your original board, with no guesswork and no retrofitting.
Complete Spa Control in One Assembly
The ELE09100000 consolidates your spa's core control functions into a single, robust PCB — coordinating your pump(s), heater, and sensors through an integrated power supply, relay system, and signal processor.
Built for Hot Tub Environments
Engineered to withstand the thermal fluctuations and voltage swings common in spa settings, this board is built tough for the long haul.
Direct Drop-In Replacement
Compatible with chip revisions C1000R1A and C1000R1B (note: newer revisions may end in any letter). Always verify your chip ID number before ordering.
New Condition
Every unit sold by Western Tub and Pool is brand new — not refurbished, not repaired.
Product Specifications
Specification
Detail
Part Number
ELE09100000
Chip Number
C1000R1B (also compatible with C1000R1A; newer revisions may end in any letter)
Balboa Part Number
50868
Brand
Balboa Water Group (for Cal Spas)
Model Series
C1000
Condition
New
Weight
Approximately 1.5 lbs
Warranty
30-Day Limited Warranty (Cal Spas)
Important Note: Physical board dimensions are not published by the manufacturer. If you need to confirm fitment, please send us a photo of your existing board — we're happy to help verify compatibility before you order.
Compatible Cal Spas Hot Tub Models
The C1000R1B Circuit Board (ELE09100000) is used across a wide range of Cal Spas hot tubs equipped with the C1000 control system, including models from the following series:
Escape Series
Pacifica EC-735L, Pacifica EP-761L, Pacifica EC-751L, Tropical EC-735B, Tropical EP-761B, Tropical EC-751B, Atlantic EC-835L, Atlantic EP-861L, Atlantic EC-861L, Bel Air EC-835B, Bel Air EP-861B, Malibu EC-754DL, Malibu EP-760DL, Windsor EC-852L, Windsor EP-860L, Avalon EC-864L, Avalon EP-864L, Cancun EC-864B, Cancun EP-864B, El Grande EC-947E, Newporter EC-948L
Patio Spa Series
Round PZ-511R, Balboa PZ-517L, Vista PZ-617T, Kona PZ-525L, Hawaiian PZ-621L, Pacifica PZ-722L, Tropical PZ-722B
Patio Plus Series
Balboa PPZ-525L, Vista PPZ-628T, Kona PPZ-537L, Hawaiian PPZ-631L, Pacifica PPZ-732L, Tropical PPZ-732B
Platinum Series
Pacifica PL-760L, Tropical PL-760B, Atlantic PL-860L, Bel Air PL-861B, Atlantic PL-880L, Bel Air PL-881B
Platinum Plus Series
Huntington PPL7L, Laguna PPL7B, La Jolla PPL8L, Carmel PPL8B
Swim Pro / Fitness Series
Fitness F-1222, Swim Pro F-1325, Freestyle F-1420, Freestyle F-1437, Champion F-1640, Olympian F-1770
Inground Spa Series
Round IG-401, Octagon IG-402, Square IG-403, Triangular IG-404, Octagon XL IG-405, Kidney IG-406, Round IGJ-401-16, Octagon IGJ-402-16, Square IGJ-403-26, Triangular IGH-404-16, Octagon XL IGJ-405-26, Kidney IGH-406-16
Not sure if this fits your spa? Check the chip number printed on your existing circuit board, and look for the Balboa 5-digit number on the white sticker (it always starts with \"5\"). Still unsure? Contact our team — we'll help you confirm the right part.
Frequently Asked Questions
How do I know if ELE09100000 is the right circuit board for my hot tub?
Check the chip ID number printed on your existing circuit board. If it reads C1000R1A, C1000R1B, or any other C1000R1 revision (ending in any letter), this board is your match. You can also look for the Balboa 5-digit white sticker number — it should read 50868. If you're still unsure, send us a photo of your old board to fixmytub@gmail.com and we'll confirm compatibility for you.
What does this circuit board control?
The C1000R1B board manages your spa's core functions — including pump operation, heater control, and sensor signal processing. It integrates a power supply, relay system, and signal processor into one compact assembly.
Is this a new part or a refurbished one?
This is a brand-new circuit board — not rebuilt or refurbished.
What is the warranty on this board?
Cal Spas offers a 30-day limited warranty on circuit boards. Please note that this part is non-returnable and is eligible for exchange under warranty only.
What if I can't find my part number?
No problem at all. Send an email to fixmytub@gmail.com with:
Your hot tub's make and model
Your spa's serial number
A photo of your existing circuit board (if available)
Our team will identify the correct part and get back to you promptly.
Can I install this circuit board myself?
Printed circuit board replacement instructions are available from Balboa Water Group. However, if you're not comfortable working with spa electronics, we recommend consulting a qualified spa technician. Have questions before you begin? Give us a call at 1-855-248-0777.
Do you carry other Cal Spas circuit boards?
Yes. Western Tub and Pool carries an extensive range of Cal Spas circuit boards and replacement parts. Browse our full catalog online or contact us directly for assistance finding a specific board.
Can't Find Your Part? We Can Help.
Hard-to-find spa parts are our specialty. If you're not sure which circuit board fits your Cal Spa — or if your model isn't listed above — reach out to our team and we'll track it down for you.
To help us find the right part, please include:
Your hot tub's make and model name
Your spa's serial number (Cal Spas serial numbers follow the format: YYS-XXXXXX, where \"YY\" = year of manufacture)
Your existing circuit board chip number (if readable)
Photos of your current board and/or equipment bay
Email: fixmytub@gmail.com
Phone: 1-855-248-0777
Shop and Order at Western Tub and Pool
Get the Cal Spas C1000R1B Circuit Board (ELE09100000) shipped straight to your door. Whether you're a seasoned DIYer or tackling your first spa repair, our team is here to make sure you get the right part — the first time.
[Order Now] [Call 1-855-248-0777] [Email fixmytub@gmail.com]")
![Cal Spas C1000R1B Circuit Board (ELE09100000) — Genuine Replacement Part
Your Cal Spa deserves a reliable fix. The Cal Spas C1000R1B Circuit Board (Part #ELE09100000) is the exact replacement control board your spa needs to get back up and running — managing your pumps, heater, and sensors with precision-engineered Balboa electronics.
Shop and order at Western Tub and Pool — call us at 1-855-248-0777 or email fixmytub@gmail.com.
[Shop Now] [Call Us: 1-855-248-0777]
Why Choose the Cal Spas C1000R1B Circuit Board?
OEM-Compatible Balboa Electronics
This board is manufactured by Balboa Water Group — one of the most trusted names in spa electronics. It delivers the same reliable control logic as your original board, with no guesswork and no retrofitting.
Complete Spa Control in One Assembly
The ELE09100000 consolidates your spa's core control functions into a single, robust PCB — coordinating your pump(s), heater, and sensors through an integrated power supply, relay system, and signal processor.
Built for Hot Tub Environments
Engineered to withstand the thermal fluctuations and voltage swings common in spa settings, this board is built tough for the long haul.
Direct Drop-In Replacement
Compatible with chip revisions C1000R1A and C1000R1B (note: newer revisions may end in any letter). Always verify your chip ID number before ordering.
New Condition
Every unit sold by Western Tub and Pool is brand new — not refurbished, not repaired.
Product Specifications
Specification
Detail
Part Number
ELE09100000
Chip Number
C1000R1B (also compatible with C1000R1A; newer revisions may end in any letter)
Balboa Part Number
50868
Brand
Balboa Water Group (for Cal Spas)
Model Series
C1000
Condition
New
Weight
Approximately 1.5 lbs
Warranty
30-Day Limited Warranty (Cal Spas)
Important Note: Physical board dimensions are not published by the manufacturer. If you need to confirm fitment, please send us a photo of your existing board — we're happy to help verify compatibility before you order.
Compatible Cal Spas Hot Tub Models
The C1000R1B Circuit Board (ELE09100000) is used across a wide range of Cal Spas hot tubs equipped with the C1000 control system, including models from the following series:
Escape Series
Pacifica EC-735L, Pacifica EP-761L, Pacifica EC-751L, Tropical EC-735B, Tropical EP-761B, Tropical EC-751B, Atlantic EC-835L, Atlantic EP-861L, Atlantic EC-861L, Bel Air EC-835B, Bel Air EP-861B, Malibu EC-754DL, Malibu EP-760DL, Windsor EC-852L, Windsor EP-860L, Avalon EC-864L, Avalon EP-864L, Cancun EC-864B, Cancun EP-864B, El Grande EC-947E, Newporter EC-948L
Patio Spa Series
Round PZ-511R, Balboa PZ-517L, Vista PZ-617T, Kona PZ-525L, Hawaiian PZ-621L, Pacifica PZ-722L, Tropical PZ-722B
Patio Plus Series
Balboa PPZ-525L, Vista PPZ-628T, Kona PPZ-537L, Hawaiian PPZ-631L, Pacifica PPZ-732L, Tropical PPZ-732B
Platinum Series
Pacifica PL-760L, Tropical PL-760B, Atlantic PL-860L, Bel Air PL-861B, Atlantic PL-880L, Bel Air PL-881B
Platinum Plus Series
Huntington PPL7L, Laguna PPL7B, La Jolla PPL8L, Carmel PPL8B
Swim Pro / Fitness Series
Fitness F-1222, Swim Pro F-1325, Freestyle F-1420, Freestyle F-1437, Champion F-1640, Olympian F-1770
Inground Spa Series
Round IG-401, Octagon IG-402, Square IG-403, Triangular IG-404, Octagon XL IG-405, Kidney IG-406, Round IGJ-401-16, Octagon IGJ-402-16, Square IGJ-403-26, Triangular IGH-404-16, Octagon XL IGJ-405-26, Kidney IGH-406-16
Not sure if this fits your spa? Check the chip number printed on your existing circuit board, and look for the Balboa 5-digit number on the white sticker (it always starts with "5"). Still unsure? Contact our team — we'll help you confirm the right part.
Frequently Asked Questions
How do I know if ELE09100000 is the right circuit board for my hot tub?
Check the chip ID number printed on your existing circuit board. If it reads C1000R1A, C1000R1B, or any other C1000R1 revision (ending in any letter), this board is your match. You can also look for the Balboa 5-digit white sticker number — it should read 50868. If you're still unsure, send us a photo of your old board to fixmytub@gmail.com and we'll confirm compatibility for you.
What does this circuit board control?
The C1000R1B board manages your spa's core functions — including pump operation, heater control, and sensor signal processing. It integrates a power supply, relay system, and signal processor into one compact assembly.
Is this a new part or a refurbished one?
This is a brand-new circuit board — not rebuilt or refurbished.
What is the warranty on this board?
Cal Spas offers a 30-day limited warranty on circuit boards. Please note that this part is non-returnable and is eligible for exchange under warranty only.
What if I can't find my part number?
No problem at all. Send an email to fixmytub@gmail.com with:
Your hot tub's make and model
Your spa's serial number
A photo of your existing circuit board (if available)
Our team will identify the correct part and get back to you promptly.
Can I install this circuit board myself?
Printed circuit board replacement instructions are available from Balboa Water Group. However, if you're not comfortable working with spa electronics, we recommend consulting a qualified spa technician. Have questions before you begin? Give us a call at 1-855-248-0777.
Do you carry other Cal Spas circuit boards?
Yes. Western Tub and Pool carries an extensive range of Cal Spas circuit boards and replacement parts. Browse our full catalog online or contact us directly for assistance finding a specific board.
Can't Find Your Part? We Can Help.
Hard-to-find spa parts are our specialty. If you're not sure which circuit board fits your Cal Spa — or if your model isn't listed above — reach out to our team and we'll track it down for you.
To help us find the right part, please include:
Your hot tub's make and model name
Your spa's serial number (Cal Spas serial numbers follow the format: YYS-XXXXXX, where "YY" = year of manufacture)
Your existing circuit board chip number (if readable)
Photos of your current board and/or equipment bay
Email: fixmytub@gmail.com
Phone: 1-855-248-0777
Shop and Order at Western Tub and Pool
Get the Cal Spas C1000R1B Circuit Board (ELE09100000) shipped straight to your door. Whether you're a seasoned DIYer or tackling your first spa repair, our team is here to make sure you get the right part — the first time.
[Order Now] [Call 1-855-248-0777] [Email fixmytub@gmail.com]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/100x100/products/4435/6689/CSE09100000__26311.1784398883.PNG?c=2 "Cal Spas C1000R1B Circuit Board (ELE09100000) — Genuine Replacement Part
Your Cal Spa deserves a reliable fix. The Cal Spas C1000R1B Circuit Board (Part #ELE09100000) is the exact replacement control board your spa needs to get back up and running — managing your pumps, heater, and sensors with precision-engineered Balboa electronics.
Shop and order at Western Tub and Pool — call us at 1-855-248-0777 or email fixmytub@gmail.com.
[Shop Now] [Call Us: 1-855-248-0777]
Why Choose the Cal Spas C1000R1B Circuit Board?
OEM-Compatible Balboa Electronics
This board is manufactured by Balboa Water Group — one of the most trusted names in spa electronics. It delivers the same reliable control logic as your original board, with no guesswork and no retrofitting.
Complete Spa Control in One Assembly
The ELE09100000 consolidates your spa's core control functions into a single, robust PCB — coordinating your pump(s), heater, and sensors through an integrated power supply, relay system, and signal processor.
Built for Hot Tub Environments
Engineered to withstand the thermal fluctuations and voltage swings common in spa settings, this board is built tough for the long haul.
Direct Drop-In Replacement
Compatible with chip revisions C1000R1A and C1000R1B (note: newer revisions may end in any letter). Always verify your chip ID number before ordering.
New Condition
Every unit sold by Western Tub and Pool is brand new — not refurbished, not repaired.
Product Specifications
Specification
Detail
Part Number
ELE09100000
Chip Number
C1000R1B (also compatible with C1000R1A; newer revisions may end in any letter)
Balboa Part Number
50868
Brand
Balboa Water Group (for Cal Spas)
Model Series
C1000
Condition
New
Weight
Approximately 1.5 lbs
Warranty
30-Day Limited Warranty (Cal Spas)
Important Note: Physical board dimensions are not published by the manufacturer. If you need to confirm fitment, please send us a photo of your existing board — we're happy to help verify compatibility before you order.
Compatible Cal Spas Hot Tub Models
The C1000R1B Circuit Board (ELE09100000) is used across a wide range of Cal Spas hot tubs equipped with the C1000 control system, including models from the following series:
Escape Series
Pacifica EC-735L, Pacifica EP-761L, Pacifica EC-751L, Tropical EC-735B, Tropical EP-761B, Tropical EC-751B, Atlantic EC-835L, Atlantic EP-861L, Atlantic EC-861L, Bel Air EC-835B, Bel Air EP-861B, Malibu EC-754DL, Malibu EP-760DL, Windsor EC-852L, Windsor EP-860L, Avalon EC-864L, Avalon EP-864L, Cancun EC-864B, Cancun EP-864B, El Grande EC-947E, Newporter EC-948L
Patio Spa Series
Round PZ-511R, Balboa PZ-517L, Vista PZ-617T, Kona PZ-525L, Hawaiian PZ-621L, Pacifica PZ-722L, Tropical PZ-722B
Patio Plus Series
Balboa PPZ-525L, Vista PPZ-628T, Kona PPZ-537L, Hawaiian PPZ-631L, Pacifica PPZ-732L, Tropical PPZ-732B
Platinum Series
Pacifica PL-760L, Tropical PL-760B, Atlantic PL-860L, Bel Air PL-861B, Atlantic PL-880L, Bel Air PL-881B
Platinum Plus Series
Huntington PPL7L, Laguna PPL7B, La Jolla PPL8L, Carmel PPL8B
Swim Pro / Fitness Series
Fitness F-1222, Swim Pro F-1325, Freestyle F-1420, Freestyle F-1437, Champion F-1640, Olympian F-1770
Inground Spa Series
Round IG-401, Octagon IG-402, Square IG-403, Triangular IG-404, Octagon XL IG-405, Kidney IG-406, Round IGJ-401-16, Octagon IGJ-402-16, Square IGJ-403-26, Triangular IGH-404-16, Octagon XL IGJ-405-26, Kidney IGH-406-16
Not sure if this fits your spa? Check the chip number printed on your existing circuit board, and look for the Balboa 5-digit number on the white sticker (it always starts with \"5\"). Still unsure? Contact our team — we'll help you confirm the right part.
Frequently Asked Questions
How do I know if ELE09100000 is the right circuit board for my hot tub?
Check the chip ID number printed on your existing circuit board. If it reads C1000R1A, C1000R1B, or any other C1000R1 revision (ending in any letter), this board is your match. You can also look for the Balboa 5-digit white sticker number — it should read 50868. If you're still unsure, send us a photo of your old board to fixmytub@gmail.com and we'll confirm compatibility for you.
What does this circuit board control?
The C1000R1B board manages your spa's core functions — including pump operation, heater control, and sensor signal processing. It integrates a power supply, relay system, and signal processor into one compact assembly.
Is this a new part or a refurbished one?
This is a brand-new circuit board — not rebuilt or refurbished.
What is the warranty on this board?
Cal Spas offers a 30-day limited warranty on circuit boards. Please note that this part is non-returnable and is eligible for exchange under warranty only.
What if I can't find my part number?
No problem at all. Send an email to fixmytub@gmail.com with:
Your hot tub's make and model
Your spa's serial number
A photo of your existing circuit board (if available)
Our team will identify the correct part and get back to you promptly.
Can I install this circuit board myself?
Printed circuit board replacement instructions are available from Balboa Water Group. However, if you're not comfortable working with spa electronics, we recommend consulting a qualified spa technician. Have questions before you begin? Give us a call at 1-855-248-0777.
Do you carry other Cal Spas circuit boards?
Yes. Western Tub and Pool carries an extensive range of Cal Spas circuit boards and replacement parts. Browse our full catalog online or contact us directly for assistance finding a specific board.
Can't Find Your Part? We Can Help.
Hard-to-find spa parts are our specialty. If you're not sure which circuit board fits your Cal Spa — or if your model isn't listed above — reach out to our team and we'll track it down for you.
To help us find the right part, please include:
Your hot tub's make and model name
Your spa's serial number (Cal Spas serial numbers follow the format: YYS-XXXXXX, where \"YY\" = year of manufacture)
Your existing circuit board chip number (if readable)
Photos of your current board and/or equipment bay
Email: fixmytub@gmail.com
Phone: 1-855-248-0777
Shop and Order at Western Tub and Pool
Get the Cal Spas C1000R1B Circuit Board (ELE09100000) shipped straight to your door. Whether you're a seasoned DIYer or tackling your first spa repair, our team is here to make sure you get the right part — the first time.
[Order Now] [Call 1-855-248-0777] [Email fixmytub@gmail.com]")
Product Description
Cal Spas C1000R1B Circuit Board (ELE09100000) — Genuine Replacement Part
Your Cal Spa deserves a reliable fix. The Cal Spas C1000R1B Circuit Board (Part #ELE09100000) is the exact replacement control board your spa needs to get back up and running — managing your pumps, heater, and sensors with precision-engineered Balboa electronics.
Shop and order at Western Tub and Pool — call us at 1-855-248-0777 or email fixmytub@gmail.com.
[Shop Now] [Call Us: 1-855-248-0777]
Why Choose the Cal Spas C1000R1B Circuit Board?
OEM-Compatible Balboa Electronics
This board is manufactured by Balboa Water Group — one of the most trusted names in spa electronics. It delivers the same reliable control logic as your original board, with no guesswork and no retrofitting.
Complete Spa Control in One Assembly
The ELE09100000 consolidates your spa's core control functions into a single, robust PCB — coordinating your pump(s), heater, and sensors through an integrated power supply, relay system, and signal processor.
Built for Hot Tub Environments
Engineered to withstand the thermal fluctuations and voltage swings common in spa settings, this board is built tough for the long haul.
Direct Drop-In Replacement
Compatible with chip revisions C1000R1A and C1000R1B (note: newer revisions may end in any letter). Always verify your chip ID number before ordering.
New Condition
Every unit sold by Western Tub and Pool is brand new — not refurbished, not repaired.
Product Specifications
|
Specification |
Detail |
|---|---|
|
Part Number |
ELE09100000 |
|
Chip Number |
C1000R1B (also compatible with C1000R1A; newer revisions may end in any letter) |
|
Balboa Part Number |
50868 |
|
Brand |
Balboa Water Group (for Cal Spas) |
|
Model Series |
C1000 |
|
Condition |
New |
|
Weight |
Approximately 1.5 lbs |
|
Warranty |
30-Day Limited Warranty (Cal Spas) |
Important Note: Physical board dimensions are not published by the manufacturer. If you need to confirm fitment, please send us a photo of your existing board — we're happy to help verify compatibility before you order.
Compatible Cal Spas Hot Tub Models
The C1000R1B Circuit Board (ELE09100000) is used across a wide range of Cal Spas hot tubs equipped with the C1000 control system, including models from the following series:
Escape Series
Pacifica EC-735L, Pacifica EP-761L, Pacifica EC-751L, Tropical EC-735B, Tropical EP-761B, Tropical EC-751B, Atlantic EC-835L, Atlantic EP-861L, Atlantic EC-861L, Bel Air EC-835B, Bel Air EP-861B, Malibu EC-754DL, Malibu EP-760DL, Windsor EC-852L, Windsor EP-860L, Avalon EC-864L, Avalon EP-864L, Cancun EC-864B, Cancun EP-864B, El Grande EC-947E, Newporter EC-948L
Patio Spa Series
Round PZ-511R, Balboa PZ-517L, Vista PZ-617T, Kona PZ-525L, Hawaiian PZ-621L, Pacifica PZ-722L, Tropical PZ-722B
Patio Plus Series
Balboa PPZ-525L, Vista PPZ-628T, Kona PPZ-537L, Hawaiian PPZ-631L, Pacifica PPZ-732L, Tropical PPZ-732B
Platinum Series
Pacifica PL-760L, Tropical PL-760B, Atlantic PL-860L, Bel Air PL-861B, Atlantic PL-880L, Bel Air PL-881B
Platinum Plus Series
Huntington PPL7L, Laguna PPL7B, La Jolla PPL8L, Carmel PPL8B
Swim Pro / Fitness Series
Fitness F-1222, Swim Pro F-1325, Freestyle F-1420, Freestyle F-1437, Champion F-1640, Olympian F-1770
Inground Spa Series
Round IG-401, Octagon IG-402, Square IG-403, Triangular IG-404, Octagon XL IG-405, Kidney IG-406, Round IGJ-401-16, Octagon IGJ-402-16, Square IGJ-403-26, Triangular IGH-404-16, Octagon XL IGJ-405-26, Kidney IGH-406-16
Not sure if this fits your spa? Check the chip number printed on your existing circuit board, and look for the Balboa 5-digit number on the white sticker (it always starts with "5"). Still unsure? Contact our team — we'll help you confirm the right part.
Frequently Asked Questions
How do I know if ELE09100000 is the right circuit board for my hot tub?
Check the chip ID number printed on your existing circuit board. If it reads C1000R1A, C1000R1B, or any other C1000R1 revision (ending in any letter), this board is your match. You can also look for the Balboa 5-digit white sticker number — it should read 50868. If you're still unsure, send us a photo of your old board to fixmytub@gmail.com and we'll confirm compatibility for you.
What does this circuit board control?
The C1000R1B board manages your spa's core functions — including pump operation, heater control, and sensor signal processing. It integrates a power supply, relay system, and signal processor into one compact assembly.
Is this a new part or a refurbished one?
This is a brand-new circuit board — not rebuilt or refurbished.
What is the warranty on this board?
Cal Spas offers a 30-day limited warranty on circuit boards. Please note that this part is non-returnable and is eligible for exchange under warranty only.
What if I can't find my part number?
No problem at all. Send an email to fixmytub@gmail.com with:
- Your hot tub's make and model
- Your spa's serial number
- A photo of your existing circuit board (if available)
Our team will identify the correct part and get back to you promptly.
Can I install this circuit board myself?
Printed circuit board replacement instructions are available from Balboa Water Group. However, if you're not comfortable working with spa electronics, we recommend consulting a qualified spa technician. Have questions before you begin? Give us a call at 1-855-248-0777.
Do you carry other Cal Spas circuit boards?
Yes. Western Tub and Pool carries an extensive range of Cal Spas circuit boards and replacement parts. Browse our full catalog online or contact us directly for assistance finding a specific board.
Can't Find Your Part? We Can Help.
Hard-to-find spa parts are our specialty. If you're not sure which circuit board fits your Cal Spa — or if your model isn't listed above — reach out to our team and we'll track it down for you.
To help us find the right part, please include:
- Your hot tub's make and model name
- Your spa's serial number (Cal Spas serial numbers follow the format: YYS-XXXXXX, where "YY" = year of manufacture)
- Your existing circuit board chip number (if readable)
- Photos of your current board and/or equipment bay
Email:fixmytub@gmail.com
Phone: 1-855-248-0777
Shop and Order at Western Tub and Pool
Get the Cal Spas C1000R1B Circuit Board (ELE09100000) shipped straight to your door. Whether you're a seasoned DIYer or tackling your first spa repair, our team is here to make sure you get the right part — the first time.
[Order Now] [Call 1-855-248-0777] [Email fixmytub@gmail.com]
![Cal Spas C1000R1B Circuit Board (ELE09100000) — Genuine Replacement Part
Your Cal Spa deserves a reliable fix. The Cal Spas C1000R1B Circuit Board (Part #ELE09100000) is the exact replacement control board your spa needs to get back up and running — managing your pumps, heater, and sensors with precision-engineered Balboa electronics.
Shop and order at Western Tub and Pool — call us at 1-855-248-0777 or email fixmytub@gmail.com.
[Shop Now] [Call Us: 1-855-248-0777]
Why Choose the Cal Spas C1000R1B Circuit Board?
OEM-Compatible Balboa Electronics
This board is manufactured by Balboa Water Group — one of the most trusted names in spa electronics. It delivers the same reliable control logic as your original board, with no guesswork and no retrofitting.
Complete Spa Control in One Assembly
The ELE09100000 consolidates your spa's core control functions into a single, robust PCB — coordinating your pump(s), heater, and sensors through an integrated power supply, relay system, and signal processor.
Built for Hot Tub Environments
Engineered to withstand the thermal fluctuations and voltage swings common in spa settings, this board is built tough for the long haul.
Direct Drop-In Replacement
Compatible with chip revisions C1000R1A and C1000R1B (note: newer revisions may end in any letter). Always verify your chip ID number before ordering.
New Condition
Every unit sold by Western Tub and Pool is brand new — not refurbished, not repaired.
Product Specifications
Specification
Detail
Part Number
ELE09100000
Chip Number
C1000R1B (also compatible with C1000R1A; newer revisions may end in any letter)
Balboa Part Number
50868
Brand
Balboa Water Group (for Cal Spas)
Model Series
C1000
Condition
New
Weight
Approximately 1.5 lbs
Warranty
30-Day Limited Warranty (Cal Spas)
Important Note: Physical board dimensions are not published by the manufacturer. If you need to confirm fitment, please send us a photo of your existing board — we're happy to help verify compatibility before you order.
Compatible Cal Spas Hot Tub Models
The C1000R1B Circuit Board (ELE09100000) is used across a wide range of Cal Spas hot tubs equipped with the C1000 control system, including models from the following series:
Escape Series
Pacifica EC-735L, Pacifica EP-761L, Pacifica EC-751L, Tropical EC-735B, Tropical EP-761B, Tropical EC-751B, Atlantic EC-835L, Atlantic EP-861L, Atlantic EC-861L, Bel Air EC-835B, Bel Air EP-861B, Malibu EC-754DL, Malibu EP-760DL, Windsor EC-852L, Windsor EP-860L, Avalon EC-864L, Avalon EP-864L, Cancun EC-864B, Cancun EP-864B, El Grande EC-947E, Newporter EC-948L
Patio Spa Series
Round PZ-511R, Balboa PZ-517L, Vista PZ-617T, Kona PZ-525L, Hawaiian PZ-621L, Pacifica PZ-722L, Tropical PZ-722B
Patio Plus Series
Balboa PPZ-525L, Vista PPZ-628T, Kona PPZ-537L, Hawaiian PPZ-631L, Pacifica PPZ-732L, Tropical PPZ-732B
Platinum Series
Pacifica PL-760L, Tropical PL-760B, Atlantic PL-860L, Bel Air PL-861B, Atlantic PL-880L, Bel Air PL-881B
Platinum Plus Series
Huntington PPL7L, Laguna PPL7B, La Jolla PPL8L, Carmel PPL8B
Swim Pro / Fitness Series
Fitness F-1222, Swim Pro F-1325, Freestyle F-1420, Freestyle F-1437, Champion F-1640, Olympian F-1770
Inground Spa Series
Round IG-401, Octagon IG-402, Square IG-403, Triangular IG-404, Octagon XL IG-405, Kidney IG-406, Round IGJ-401-16, Octagon IGJ-402-16, Square IGJ-403-26, Triangular IGH-404-16, Octagon XL IGJ-405-26, Kidney IGH-406-16
Not sure if this fits your spa? Check the chip number printed on your existing circuit board, and look for the Balboa 5-digit number on the white sticker (it always starts with "5"). Still unsure? Contact our team — we'll help you confirm the right part.
Frequently Asked Questions
How do I know if ELE09100000 is the right circuit board for my hot tub?
Check the chip ID number printed on your existing circuit board. If it reads C1000R1A, C1000R1B, or any other C1000R1 revision (ending in any letter), this board is your match. You can also look for the Balboa 5-digit white sticker number — it should read 50868. If you're still unsure, send us a photo of your old board to fixmytub@gmail.com and we'll confirm compatibility for you.
What does this circuit board control?
The C1000R1B board manages your spa's core functions — including pump operation, heater control, and sensor signal processing. It integrates a power supply, relay system, and signal processor into one compact assembly.
Is this a new part or a refurbished one?
This is a brand-new circuit board — not rebuilt or refurbished.
What is the warranty on this board?
Cal Spas offers a 30-day limited warranty on circuit boards. Please note that this part is non-returnable and is eligible for exchange under warranty only.
What if I can't find my part number?
No problem at all. Send an email to fixmytub@gmail.com with:
Your hot tub's make and model
Your spa's serial number
A photo of your existing circuit board (if available)
Our team will identify the correct part and get back to you promptly.
Can I install this circuit board myself?
Printed circuit board replacement instructions are available from Balboa Water Group. However, if you're not comfortable working with spa electronics, we recommend consulting a qualified spa technician. Have questions before you begin? Give us a call at 1-855-248-0777.
Do you carry other Cal Spas circuit boards?
Yes. Western Tub and Pool carries an extensive range of Cal Spas circuit boards and replacement parts. Browse our full catalog online or contact us directly for assistance finding a specific board.
Can't Find Your Part? We Can Help.
Hard-to-find spa parts are our specialty. If you're not sure which circuit board fits your Cal Spa — or if your model isn't listed above — reach out to our team and we'll track it down for you.
To help us find the right part, please include:
Your hot tub's make and model name
Your spa's serial number (Cal Spas serial numbers follow the format: YYS-XXXXXX, where "YY" = year of manufacture)
Your existing circuit board chip number (if readable)
Photos of your current board and/or equipment bay
Email: fixmytub@gmail.com
Phone: 1-855-248-0777
Shop and Order at Western Tub and Pool
Get the Cal Spas C1000R1B Circuit Board (ELE09100000) shipped straight to your door. Whether you're a seasoned DIYer or tackling your first spa repair, our team is here to make sure you get the right part — the first time.
[Order Now] [Call 1-855-248-0777] [Email fixmytub@gmail.com]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4435/6689/CSE09100000__26311.1784398883.PNG?c=2 "Cal Spas C1000R1B Circuit Board (ELE09100000) — Genuine Replacement Part
Your Cal Spa deserves a reliable fix. The Cal Spas C1000R1B Circuit Board (Part #ELE09100000) is the exact replacement control board your spa needs to get back up and running — managing your pumps, heater, and sensors with precision-engineered Balboa electronics.
Shop and order at Western Tub and Pool — call us at 1-855-248-0777 or email fixmytub@gmail.com.
[Shop Now] [Call Us: 1-855-248-0777]
Why Choose the Cal Spas C1000R1B Circuit Board?
OEM-Compatible Balboa Electronics
This board is manufactured by Balboa Water Group — one of the most trusted names in spa electronics. It delivers the same reliable control logic as your original board, with no guesswork and no retrofitting.
Complete Spa Control in One Assembly
The ELE09100000 consolidates your spa's core control functions into a single, robust PCB — coordinating your pump(s), heater, and sensors through an integrated power supply, relay system, and signal processor.
Built for Hot Tub Environments
Engineered to withstand the thermal fluctuations and voltage swings common in spa settings, this board is built tough for the long haul.
Direct Drop-In Replacement
Compatible with chip revisions C1000R1A and C1000R1B (note: newer revisions may end in any letter). Always verify your chip ID number before ordering.
New Condition
Every unit sold by Western Tub and Pool is brand new — not refurbished, not repaired.
Product Specifications
Specification
Detail
Part Number
ELE09100000
Chip Number
C1000R1B (also compatible with C1000R1A; newer revisions may end in any letter)
Balboa Part Number
50868
Brand
Balboa Water Group (for Cal Spas)
Model Series
C1000
Condition
New
Weight
Approximately 1.5 lbs
Warranty
30-Day Limited Warranty (Cal Spas)
Important Note: Physical board dimensions are not published by the manufacturer. If you need to confirm fitment, please send us a photo of your existing board — we're happy to help verify compatibility before you order.
Compatible Cal Spas Hot Tub Models
The C1000R1B Circuit Board (ELE09100000) is used across a wide range of Cal Spas hot tubs equipped with the C1000 control system, including models from the following series:
Escape Series
Pacifica EC-735L, Pacifica EP-761L, Pacifica EC-751L, Tropical EC-735B, Tropical EP-761B, Tropical EC-751B, Atlantic EC-835L, Atlantic EP-861L, Atlantic EC-861L, Bel Air EC-835B, Bel Air EP-861B, Malibu EC-754DL, Malibu EP-760DL, Windsor EC-852L, Windsor EP-860L, Avalon EC-864L, Avalon EP-864L, Cancun EC-864B, Cancun EP-864B, El Grande EC-947E, Newporter EC-948L
Patio Spa Series
Round PZ-511R, Balboa PZ-517L, Vista PZ-617T, Kona PZ-525L, Hawaiian PZ-621L, Pacifica PZ-722L, Tropical PZ-722B
Patio Plus Series
Balboa PPZ-525L, Vista PPZ-628T, Kona PPZ-537L, Hawaiian PPZ-631L, Pacifica PPZ-732L, Tropical PPZ-732B
Platinum Series
Pacifica PL-760L, Tropical PL-760B, Atlantic PL-860L, Bel Air PL-861B, Atlantic PL-880L, Bel Air PL-881B
Platinum Plus Series
Huntington PPL7L, Laguna PPL7B, La Jolla PPL8L, Carmel PPL8B
Swim Pro / Fitness Series
Fitness F-1222, Swim Pro F-1325, Freestyle F-1420, Freestyle F-1437, Champion F-1640, Olympian F-1770
Inground Spa Series
Round IG-401, Octagon IG-402, Square IG-403, Triangular IG-404, Octagon XL IG-405, Kidney IG-406, Round IGJ-401-16, Octagon IGJ-402-16, Square IGJ-403-26, Triangular IGH-404-16, Octagon XL IGJ-405-26, Kidney IGH-406-16
Not sure if this fits your spa? Check the chip number printed on your existing circuit board, and look for the Balboa 5-digit number on the white sticker (it always starts with \"5\"). Still unsure? Contact our team — we'll help you confirm the right part.
Frequently Asked Questions
How do I know if ELE09100000 is the right circuit board for my hot tub?
Check the chip ID number printed on your existing circuit board. If it reads C1000R1A, C1000R1B, or any other C1000R1 revision (ending in any letter), this board is your match. You can also look for the Balboa 5-digit white sticker number — it should read 50868. If you're still unsure, send us a photo of your old board to fixmytub@gmail.com and we'll confirm compatibility for you.
What does this circuit board control?
The C1000R1B board manages your spa's core functions — including pump operation, heater control, and sensor signal processing. It integrates a power supply, relay system, and signal processor into one compact assembly.
Is this a new part or a refurbished one?
This is a brand-new circuit board — not rebuilt or refurbished.
What is the warranty on this board?
Cal Spas offers a 30-day limited warranty on circuit boards. Please note that this part is non-returnable and is eligible for exchange under warranty only.
What if I can't find my part number?
No problem at all. Send an email to fixmytub@gmail.com with:
Your hot tub's make and model
Your spa's serial number
A photo of your existing circuit board (if available)
Our team will identify the correct part and get back to you promptly.
Can I install this circuit board myself?
Printed circuit board replacement instructions are available from Balboa Water Group. However, if you're not comfortable working with spa electronics, we recommend consulting a qualified spa technician. Have questions before you begin? Give us a call at 1-855-248-0777.
Do you carry other Cal Spas circuit boards?
Yes. Western Tub and Pool carries an extensive range of Cal Spas circuit boards and replacement parts. Browse our full catalog online or contact us directly for assistance finding a specific board.
Can't Find Your Part? We Can Help.
Hard-to-find spa parts are our specialty. If you're not sure which circuit board fits your Cal Spa — or if your model isn't listed above — reach out to our team and we'll track it down for you.
To help us find the right part, please include:
Your hot tub's make and model name
Your spa's serial number (Cal Spas serial numbers follow the format: YYS-XXXXXX, where \"YY\" = year of manufacture)
Your existing circuit board chip number (if readable)
Photos of your current board and/or equipment bay
Email: fixmytub@gmail.com
Phone: 1-855-248-0777
Shop and Order at Western Tub and Pool
Get the Cal Spas C1000R1B Circuit Board (ELE09100000) shipped straight to your door. Whether you're a seasoned DIYer or tackling your first spa repair, our team is here to make sure you get the right part — the first time.
[Order Now] [Call 1-855-248-0777] [Email fixmytub@gmail.com]")
![Cal Spa Circuit Board ELE09100027 — Get Your Hot Tub Running Again
Is your Cal Spa hot tub not heating, not responding, or throwing error codes? A failed circuit board is one of the most common culprits — and the ELE09100027 is the OEM replacement that gets your spa back up and running fast. Shop and order at Western Tub and Pool, your trusted source for hard-to-find Cal Spas replacement parts.
Call us: 1-855-248-0777 | Email: fixmytub@gmail.com
[Shop This Part Now] [Call for Assistance]
What Is the Cal Spa Circuit Board ELE09100027?
The Cal Spa Circuit Board ELE09100027 is a genuine OEM-grade printed circuit board designed for Cal Spas hot tubs equipped with the CS501Z control box. This is the brain of your spa's control system — managing heat, jets, pumps, and all electronic functions. When it fails, your spa stops working. This board is the direct, factory-compatible replacement.
This is a brand new board, backed by Cal Spas' manufacturer's warranty.
Product Specifications
Specification
Details
Part Number
ELE09100027
Also Listed As
CALELE09100027
Balboa / OEM Reference Number
54512-01
Chip Numbers
GS501ZR2 / CS501Z1R1B
Compatible Control System
CS501Z
Condition
Brand New
Approximate Dimensions
11 inches wide x 5 inches high
Warranty
90-Day Cal Spas Manufacturer's Warranty
Brand
Cal Spas (Balboa-based system)
Important: Before ordering, please verify the chip ID number printed on your existing circuit board to confirm this is the correct replacement for your spa. Not sure? Send us a photo — we'll help you identify it.
Compatible Control Systems & Hot Tub Models
The ELE09100027 circuit board fits Cal Spas hot tubs that use the CS501Z control box. This control system was installed across a wide range of Cal Spas models. Compatible chip numbers include:
GS501ZR2
CS501ZR1B
CS501Z1R1B
Newer revisions may end in any letter (e.g., R1A, R1B, R1C, etc.)
Cal Spas models and series that commonly use the CS501Z control system include:
Cal Spas CS501Z Series Hot Tubs
Select models from the Cal Spas 500 Series
Various Cal Spas spa models equipped with the CS501Z control pack
Not sure if this board fits your spa? Locate your existing circuit board, check the chip ID label, and compare it with the numbers listed above. You can also call us at 1-855-248-0777 or email fixmytub@gmail.com with your spa's make, model, and serial number, and we'll confirm compatibility for you.
Why Order From Western Tub and Pool?
Finding the right circuit board for your Cal Spa doesn't have to be a headache. At Western Tub and Pool, we specialize in hard-to-find hot tub repair parts — including discontinued and OEM-grade circuit boards that most suppliers don't carry.
Genuine OEM-Compatible Part
The ELE09100027 is a factory-referenced replacement board — not a generic knockoff. It's built to match your spa's original control system specifications.
90-Day Manufacturer's Warranty
This board is covered by Cal Spas' own 90-day warranty, giving you peace of mind with your repair investment.
Expert Parts Assistance
Not sure this is the right part? Our team can help. Send us your spa's serial number, model, or a photo of your existing board, and we'll point you in the right direction.
Hard-to-Find Parts Specialists
We stock and source circuit boards, spa packs, and control systems that are difficult to find elsewhere. If it exists, we'll track it down.
How to Order or Get Help
Getting the right part is straightforward when you know where to look.
1. Confirm Your Part Number
Check the chip ID label on your existing circuit board. Look for: GS501ZR2, CS501ZR1B, or CS501Z1R1B.
2. Browse Our Online Catalogue or Call Us
Search our full catalogue for Cal Spas circuit boards, or speak directly with our parts team for personalized help.
3. Place Your Order
Order online or over the phone. We'll get your part processed and shipped promptly.
Frequently Asked Questions
How do I know if this circuit board fits my Cal Spa hot tub?
Locate the existing circuit board inside your spa's control box and find the chip ID label. If it reads GS501ZR2, CS501ZR1B, or CS501Z1R1B, this board is your match. Still unsure? Email us a photo of your board and spa serial number to fixmytub@gmail.com and we'll confirm it for you.
What does a faulty circuit board look like?
Common signs of a failed circuit board include: the spa not powering on, error codes on the topside panel, jets or heaters not responding to controls, or the spa cycling on and off unexpectedly.
Is the ELE09100027 a new or refurbished board?
This is a brand new circuit board — not refurbished or used.
What is the warranty on this board?
The ELE09100027 is backed by a 90-day Cal Spas manufacturer's warranty.
What if I can't find my chip ID number?
No problem. Send us a clear photo of your circuit board, along with your spa's make, model, and serial number, to fixmytub@gmail.com. Our team will identify the correct part for you at no charge.
Can I install this board myself?
Many experienced DIY spa owners successfully replace circuit boards themselves. However, if you're not comfortable working with electrical components, we recommend using a licensed spa technician.
Do you carry other Cal Spas circuit boards or spa parts?
Yes. Western Tub and Pool carries a wide range of Cal Spas replacement parts, including additional circuit boards, control packs, heaters, pumps, and more. Browse our online catalogue or call us to discuss your specific needs.
Can't Find the Part You Need?
We specialize in hard-to-find hot tub parts. If you're unsure which circuit board your Cal Spa requires, or if you're dealing with a discontinued or uncommon model, don't guess — reach out to us directly.
To get the fastest help, please have the following ready:
Your spa's make and model
Your spa's serial number (usually found on a sticker inside the equipment bay)
The chip ID number from your existing circuit board (if available)
Photos of your existing board (front and back) — these help us identify the correct replacement immediately
Contact Western Tub and Pool:
Phone: 1-855-248-0777
Email: fixmytub@gmail.com
Get Your Spa Back Up and Running Today
Don't let a failed circuit board keep you out of the water. The Cal Spa Circuit Board ELE09100027 is a direct, OEM-compatible replacement for Cal Spas hot tubs equipped with the CS501Z control system — and Western Tub and Pool has it in stock.
Shop and order at Western Tub and Pool today, or call our parts specialists for hands-on guidance.
1-855-248-0777 | fixmytub@gmail.com
[Order the ELE09100027 Now] [Browse Our Full Parts Catalogue] [Email Us for Help]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4433/6687/CSE09100027__59844.1784397662.PNG?c=2 "Cal Spa Circuit Board ELE09100027 — Get Your Hot Tub Running Again
Is your Cal Spa hot tub not heating, not responding, or throwing error codes? A failed circuit board is one of the most common culprits — and the ELE09100027 is the OEM replacement that gets your spa back up and running fast. Shop and order at Western Tub and Pool, your trusted source for hard-to-find Cal Spas replacement parts.
Call us: 1-855-248-0777 | Email: fixmytub@gmail.com
[Shop This Part Now] [Call for Assistance]
What Is the Cal Spa Circuit Board ELE09100027?
The Cal Spa Circuit Board ELE09100027 is a genuine OEM-grade printed circuit board designed for Cal Spas hot tubs equipped with the CS501Z control box. This is the brain of your spa's control system — managing heat, jets, pumps, and all electronic functions. When it fails, your spa stops working. This board is the direct, factory-compatible replacement.
This is a brand new board, backed by Cal Spas' manufacturer's warranty.
Product Specifications
Specification
Details
Part Number
ELE09100027
Also Listed As
CALELE09100027
Balboa / OEM Reference Number
54512-01
Chip Numbers
GS501ZR2 / CS501Z1R1B
Compatible Control System
CS501Z
Condition
Brand New
Approximate Dimensions
11 inches wide x 5 inches high
Warranty
90-Day Cal Spas Manufacturer's Warranty
Brand
Cal Spas (Balboa-based system)
Important: Before ordering, please verify the chip ID number printed on your existing circuit board to confirm this is the correct replacement for your spa. Not sure? Send us a photo — we'll help you identify it.
Compatible Control Systems & Hot Tub Models
The ELE09100027 circuit board fits Cal Spas hot tubs that use the CS501Z control box. This control system was installed across a wide range of Cal Spas models. Compatible chip numbers include:
GS501ZR2
CS501ZR1B
CS501Z1R1B
Newer revisions may end in any letter (e.g., R1A, R1B, R1C, etc.)
Cal Spas models and series that commonly use the CS501Z control system include:
Cal Spas CS501Z Series Hot Tubs
Select models from the Cal Spas 500 Series
Various Cal Spas spa models equipped with the CS501Z control pack
Not sure if this board fits your spa? Locate your existing circuit board, check the chip ID label, and compare it with the numbers listed above. You can also call us at 1-855-248-0777 or email fixmytub@gmail.com with your spa's make, model, and serial number, and we'll confirm compatibility for you.
Why Order From Western Tub and Pool?
Finding the right circuit board for your Cal Spa doesn't have to be a headache. At Western Tub and Pool, we specialize in hard-to-find hot tub repair parts — including discontinued and OEM-grade circuit boards that most suppliers don't carry.
Genuine OEM-Compatible Part
The ELE09100027 is a factory-referenced replacement board — not a generic knockoff. It's built to match your spa's original control system specifications.
90-Day Manufacturer's Warranty
This board is covered by Cal Spas' own 90-day warranty, giving you peace of mind with your repair investment.
Expert Parts Assistance
Not sure this is the right part? Our team can help. Send us your spa's serial number, model, or a photo of your existing board, and we'll point you in the right direction.
Hard-to-Find Parts Specialists
We stock and source circuit boards, spa packs, and control systems that are difficult to find elsewhere. If it exists, we'll track it down.
How to Order or Get Help
Getting the right part is straightforward when you know where to look.
1. Confirm Your Part Number
Check the chip ID label on your existing circuit board. Look for: GS501ZR2, CS501ZR1B, or CS501Z1R1B.
2. Browse Our Online Catalogue or Call Us
Search our full catalogue for Cal Spas circuit boards, or speak directly with our parts team for personalized help.
3. Place Your Order
Order online or over the phone. We'll get your part processed and shipped promptly.
Frequently Asked Questions
How do I know if this circuit board fits my Cal Spa hot tub?
Locate the existing circuit board inside your spa's control box and find the chip ID label. If it reads GS501ZR2, CS501ZR1B, or CS501Z1R1B, this board is your match. Still unsure? Email us a photo of your board and spa serial number to fixmytub@gmail.com and we'll confirm it for you.
What does a faulty circuit board look like?
Common signs of a failed circuit board include: the spa not powering on, error codes on the topside panel, jets or heaters not responding to controls, or the spa cycling on and off unexpectedly.
Is the ELE09100027 a new or refurbished board?
This is a brand new circuit board — not refurbished or used.
What is the warranty on this board?
The ELE09100027 is backed by a 90-day Cal Spas manufacturer's warranty.
What if I can't find my chip ID number?
No problem. Send us a clear photo of your circuit board, along with your spa's make, model, and serial number, to fixmytub@gmail.com. Our team will identify the correct part for you at no charge.
Can I install this board myself?
Many experienced DIY spa owners successfully replace circuit boards themselves. However, if you're not comfortable working with electrical components, we recommend using a licensed spa technician.
Do you carry other Cal Spas circuit boards or spa parts?
Yes. Western Tub and Pool carries a wide range of Cal Spas replacement parts, including additional circuit boards, control packs, heaters, pumps, and more. Browse our online catalogue or call us to discuss your specific needs.
Can't Find the Part You Need?
We specialize in hard-to-find hot tub parts. If you're unsure which circuit board your Cal Spa requires, or if you're dealing with a discontinued or uncommon model, don't guess — reach out to us directly.
To get the fastest help, please have the following ready:
Your spa's make and model
Your spa's serial number (usually found on a sticker inside the equipment bay)
The chip ID number from your existing circuit board (if available)
Photos of your existing board (front and back) — these help us identify the correct replacement immediately
Contact Western Tub and Pool:
Phone: 1-855-248-0777
Email: fixmytub@gmail.com
Get Your Spa Back Up and Running Today
Don't let a failed circuit board keep you out of the water. The Cal Spa Circuit Board ELE09100027 is a direct, OEM-compatible replacement for Cal Spas hot tubs equipped with the CS501Z control system — and Western Tub and Pool has it in stock.
Shop and order at Western Tub and Pool today, or call our parts specialists for hands-on guidance.
1-855-248-0777 | fixmytub@gmail.com
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