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Product Description
Marquis Spa Oasis Circuit Board 600-6252 — New Replacement Part
Keep your Marquis spa running strong with a genuine new replacement circuit board. The 600-6252 is a direct-fit control board built for Marquis Oasis and Spirit series spas, engineered to restore full function to your heating, pump, and control system.
Shop and order at Western Tub and Pool
Why Choose the 600-6252 Circuit Board?
- Brand New Condition: No refurbished guesswork—this is a new board, ready to install.
- Direct OEM Fit: Built to Marquis Spas' original specifications for reliable, drop-in compatibility.
- Chip Number COASTLR1A: Matches the original control chip used across multiple Marquis model years.
- Trusted Cross-Reference: Also known by Balboa number 54052, so you can confidently match it against your old board.
- Backed by Real Support: Not sure if this is the right board for your tub? Our team is a phone call or email away.
Compatible Hot Tub Models
The 600-6252 circuit board (chip COASTLR1A) is used in the following Marquis Spas models:
- 1998 Spirit LS
- 1997 Spirit CS
- 1996 Oasis CS
- 1996 Spirit CS
If your hot tub isn't listed here but you believe it uses a similar Balboa-based control system, reach out to us before ordering—many Marquis models shared parts across production years, and we can help confirm fit.
Cross-Reference & Compatible Numbers
- Marquis Part Number: 600-6252
- Chip Number: COASTLR1A (also listed as COASTLR1(x))
- Balboa Cross-Reference Number: 54052
- Also Listed As: PCB COASTLR1A (Balboa) Whirlpool (P1-CIRC-LT-OZ), 1996
Associated & Related Replacement Parts
Servicing an older or nearby model year? These related Marquis circuit boards and components may also apply to your repair:
- 600-6245 – 1995 Spirit Oasis (Balboa 51079), for Oasis MTS I and Spirit MTS I models with SPIRIT1D chip
- 600-6242 – 1994 Spirit (Balboa 51077)
- 600-6253 – Coastal 12 Conv. Destiny, for 1996 Mirage and Destiny 120V/240V models with CSTLI2R1A chip
- 600-6276 – Leisure Sport REC Coastal, for 2000–2003 Euphoria, Escape, Reward, Destiny, and Quest models
- 650-0389 – Control panel for Spirit/Oasis two-button square panel models
- 600-6224, 600-6254, 600-6302 (MQ554) – Additional Marquis circuit board options
Not sure which board matches your spa? Send us your part number, or a photo of your existing board along with your spa's make, model, and serial number, and we'll help you find the right match.
Dimensions & Specifications
Circuit board dimensions and weight can vary slightly depending on manufacturing batch and regional sourcing. For exact measurements and shipping weight for the 600-6252, contact our team directly at 1-855-248-0777 or email fixmytub@gmail.com, and we'll confirm the specs before you order.
Frequently Asked Questions
How do I know if the 600-6252 is the right board for my hot tub?
Check your existing circuit board for a part number or chip number (COASTLR1A). If your spa is a 1996–1998 Marquis Oasis or Spirit model, this board is likely a match. Still unsure? Send us a photo of your board along with your spa's make, model, and serial number, and we'll verify compatibility for you.
What's the difference between the part number and the chip number?
The part number (600-6252) identifies the specific Marquis Spas board, while the chip number (COASTLR1A) refers to the programmed control chip installed on that board. Cross-referencing both helps ensure an accurate match, especially since some boards share chip numbers across model years.
Why do some parts have different suffixes like U, C, E, or A?
As an international e-retailer, Western Tub and Pool sources parts from warehouses around the world. We add suffixes to indicate origin: U for USA, C for Canada, E for Europe, and A for Asia. The same part may be available from multiple regions, which can affect shipping times and costs.
What is your return policy on circuit boards and other parts?
We offer 30-day exchanges or store credit on eligible items—we do not offer refunds. Items must be returned within 30 days, in original condition, with the customer covering return shipping. Recycled items are final sale.
Do international orders incur extra fees?
Since we work with manufacturers and warehouses around the world, cross-border shipments may be subject to additional fees or tariffs imposed by your local government. These charges are the responsibility of the package recipient.
What if I can't find the exact part I need?
Hard-to-find product? We're here to help. Send us an email at fixmytub@gmail.com with your part number (if known), or pictures, make, model, and serial number of your hot tub, and our team will track down the right part for you.
Still Not Sure? We're Here to Help
Finding the exact replacement part for a hot tub isn't always straightforward, especially with older Marquis models. If you're having trouble identifying the right circuit board, our team is ready to help.
Hard to find product? Part assistance is just an email away: fixmytub@gmail.com
As an international e-retailer, Western Tub and Pool sources parts from warehouses across multiple regions. Because the same part may come from different origins, we've added suffixes to indicate where it ships from: U for USA, C for Canada, E for Europe, and A for Asia. Please note that products may be duplicated across regions, which can affect shipping timelines.
If you know your part number, have it ready when you contact us. If not, send us photos of your existing part, along with the make, model, and serial number of your hot tub, and we'll help confirm the correct replacement.
Shipping, Returns & Exchanges
We offer 30-day exchanges or store credit on eligible items. Please note that we do not provide refunds.
Return Process:
- Customers are responsible for return shipping costs.
- Items must be returned within 30 days of purchase.
Important Notes: - All recycled items are final sale and cannot be returned or exchanged.
- Items must be in original condition to qualify for exchange or store credit.
- As an international e-retailer and distributor, we work with manufacturers around the world. Cross-border shipments may incur additional fees and tariffs imposed by your local government, which will be the responsibility of the package recipient.
Shop and order at Western Tub and Pool
Call 1-855-248-0777 or email fixmytub@gmail.com today.
![Marquis LZM2UR1B Circuit Board 600-6293 – Genuine Replacement Spa Pack Board
Restore your Marquis spa to full working order with the 600-6293 circuit board, the OEM Balboa-manufactured replacement for 2006-2008 Marquis models. If your control panel isn't responding, your pumps won't kick in, or your spa is throwing error codes, a failing circuit board is often the culprit—and this board is the exact fix your system needs.
[Shop and Order at Western Tub and Pool]
Why This Board Is the Right Fix
Genuine OEM Quality: Manufactured by Balboa for Marquis spa systems, this is a brand-new, factory-original board—not a generic aftermarket substitute.
No Pressure Switch Needed: Built on the VS501Z platform with Balboa's M7 technology, this board handles temperature and water flow sensing without a separate pressure switch, meaning fewer parts to fail down the line.
Full-Function Control: Runs your 2-speed primary pump, 1-speed secondary pump, 12V spa light, and ozonator, so every feature of your spa stays operational.
Confirmed Compatibility: Covers a wide range of 2006 and 2007 Marquis models, plus every 2008 Marquis spa, so there's a strong chance this is the exact board your tub needs.
Direct Upgrade Path: This board replaces the older 600-6288, so if your spa used that part, 600-6293 is your drop-in solution.
Cross-Reference & Compatible Part Numbers
Use this table to confirm you're ordering the right part:
Reference Type
Number(s)
Marquis Part Number
600-6293 (also listed as MRQ600-6293)
Chip Number
LZM2UR1B (also covers LZM1UR1, LZM2UR1A, LZM2UR1C)
Balboa Part Number
54343 / 54343-01
Control Box Number
54342 (plastic enclosure)
Replaces
600-6288
Compatible Topside Panel
650-0635
Associated repair parts to check alongside this board include the 54342 plastic control box and the 650-0635 topside control panel—both work directly with this system.
Hot Tubs & Models That Use This Circuit Board
2006 Models: Quest, Ult630, Ult530, Ult418, Ult315, 630, 530, 418, 315, Retreat, Rendezvous
2007 Models: Quest, 641R, 520M, 744E, 319S, Ult630, Ult530, Ult418, Ult315, 630, 530, 418, 315, Retreat, Rendezvous, Envy, Envy II
2008 Models: All Marquis spa models
Not sure if your model made the list? Check the chip number sticker near the center of your existing board first—it's the most reliable way to confirm compatibility, regardless of your spa's model year.
Technical Specifications
Spec
Detail
Platform
VS501Z – Balboa Value Series
Technology
Balboa M7 (no pressure switch required)
Pump 1 Output
2-speed
Pump 2 Output
1-speed
Spa Light
12V
Ozonator
Supported
Topside Connection
8-pin phone cable
Housing
Plastic control box (Balboa 54342)
Condition
New, factory-original
Warranty
1-year limited manufacturer's warranty
Please note: exact board dimensions and shipping weight vary slightly by production batch. Give us a call or check our online catalogue for the most current measurements before you order.
Common Questions
How do I know if this is the right board for my spa?
Check the white chip sticker near the center of your existing circuit board. If it reads LZM1UR1, LZM2UR1A, LZM2UR1B, or LZM2UR1C, this board is a match. Your spa's model and year should also fall within our compatibility list above.
What if I can't find the chip number on my old board?
No problem—send us clear photos of your existing board along with your spa's make, model, and serial number, and our team will confirm the correct part for you.
Does this board work with any topside control panel?
This board is confirmed compatible with the 650-0635 topside panel. If your spa uses a different topside, contact us before ordering to confirm fit.
Is this board new or refurbished?
This is a brand-new, factory-original board that has never been installed.
Can I return this part if it doesn't fit?
Circuit boards are non-returnable once purchased, so please confirm your chip number, spa model, and year with our team before placing your order.
Do I need an electrician to install this?
Yes. Installation should be performed by a licensed electrician in compliance with NEC Article 680 and all applicable local codes, including proper GFCI protection and grounding.
Get the Right Part the First Time
[Shop and Order at Western Tub and Pool]
Hard-to-find part? Send us an email at fixmytub@gmail.com and our team will help track it down.
As an international e-retailer, Western Tub and Pool sources parts from warehouses across multiple regions, which can affect shipping times. To help you identify where your part ships from, we've added regional suffixes to our part numbers: U for U.S.A., C for Canada, E for Europe, and A for Asia. Because of this, you may see what looks like a duplicate listing for the same part—this simply reflects a different regional warehouse.
If you already know your part number, double-check it against the listing before ordering. If you're not sure, send us pictures of the part along with your hot tub's make, model, and serial number, and we'll help you find the exact match.](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4575/6853/600-6293__28394.1789504002.PNG?c=2 "Marquis LZM2UR1B Circuit Board 600-6293 – Genuine Replacement Spa Pack Board
Restore your Marquis spa to full working order with the 600-6293 circuit board, the OEM Balboa-manufactured replacement for 2006-2008 Marquis models. If your control panel isn't responding, your pumps won't kick in, or your spa is throwing error codes, a failing circuit board is often the culprit—and this board is the exact fix your system needs.
[Shop and Order at Western Tub and Pool]
Why This Board Is the Right Fix
Genuine OEM Quality: Manufactured by Balboa for Marquis spa systems, this is a brand-new, factory-original board—not a generic aftermarket substitute.
No Pressure Switch Needed: Built on the VS501Z platform with Balboa's M7 technology, this board handles temperature and water flow sensing without a separate pressure switch, meaning fewer parts to fail down the line.
Full-Function Control: Runs your 2-speed primary pump, 1-speed secondary pump, 12V spa light, and ozonator, so every feature of your spa stays operational.
Confirmed Compatibility: Covers a wide range of 2006 and 2007 Marquis models, plus every 2008 Marquis spa, so there's a strong chance this is the exact board your tub needs.
Direct Upgrade Path: This board replaces the older 600-6288, so if your spa used that part, 600-6293 is your drop-in solution.
Cross-Reference & Compatible Part Numbers
Use this table to confirm you're ordering the right part:
Reference Type
Number(s)
Marquis Part Number
600-6293 (also listed as MRQ600-6293)
Chip Number
LZM2UR1B (also covers LZM1UR1, LZM2UR1A, LZM2UR1C)
Balboa Part Number
54343 / 54343-01
Control Box Number
54342 (plastic enclosure)
Replaces
600-6288
Compatible Topside Panel
650-0635
Associated repair parts to check alongside this board include the 54342 plastic control box and the 650-0635 topside control panel—both work directly with this system.
Hot Tubs & Models That Use This Circuit Board
2006 Models: Quest, Ult630, Ult530, Ult418, Ult315, 630, 530, 418, 315, Retreat, Rendezvous
2007 Models: Quest, 641R, 520M, 744E, 319S, Ult630, Ult530, Ult418, Ult315, 630, 530, 418, 315, Retreat, Rendezvous, Envy, Envy II
2008 Models: All Marquis spa models
Not sure if your model made the list? Check the chip number sticker near the center of your existing board first—it's the most reliable way to confirm compatibility, regardless of your spa's model year.
Technical Specifications
Spec
Detail
Platform
VS501Z – Balboa Value Series
Technology
Balboa M7 (no pressure switch required)
Pump 1 Output
2-speed
Pump 2 Output
1-speed
Spa Light
12V
Ozonator
Supported
Topside Connection
8-pin phone cable
Housing
Plastic control box (Balboa 54342)
Condition
New, factory-original
Warranty
1-year limited manufacturer's warranty
Please note: exact board dimensions and shipping weight vary slightly by production batch. Give us a call or check our online catalogue for the most current measurements before you order.
Common Questions
How do I know if this is the right board for my spa?
Check the white chip sticker near the center of your existing circuit board. If it reads LZM1UR1, LZM2UR1A, LZM2UR1B, or LZM2UR1C, this board is a match. Your spa's model and year should also fall within our compatibility list above.
What if I can't find the chip number on my old board?
No problem—send us clear photos of your existing board along with your spa's make, model, and serial number, and our team will confirm the correct part for you.
Does this board work with any topside control panel?
This board is confirmed compatible with the 650-0635 topside panel. If your spa uses a different topside, contact us before ordering to confirm fit.
Is this board new or refurbished?
This is a brand-new, factory-original board that has never been installed.
Can I return this part if it doesn't fit?
Circuit boards are non-returnable once purchased, so please confirm your chip number, spa model, and year with our team before placing your order.
Do I need an electrician to install this?
Yes. Installation should be performed by a licensed electrician in compliance with NEC Article 680 and all applicable local codes, including proper GFCI protection and grounding.
Get the Right Part the First Time
[Shop and Order at Western Tub and Pool]
Hard-to-find part? Send us an email at fixmytub@gmail.com and our team will help track it down.
As an international e-retailer, Western Tub and Pool sources parts from warehouses across multiple regions, which can affect shipping times. To help you identify where your part ships from, we've added regional suffixes to our part numbers: U for U.S.A., C for Canada, E for Europe, and A for Asia. Because of this, you may see what looks like a duplicate listing for the same part—this simply reflects a different regional warehouse.
If you already know your part number, double-check it against the listing before ordering. If you're not sure, send us pictures of the part along with your hot tub's make, model, and serial number, and we'll help you find the exact match.")
![Restore Your Vintage Marquis Spa with the MTSICD Circuit Board 600-6246
The Marquis MTSICD Circuit Board (Part# 600-6246) is a genuine Balboa-engineered replacement built to bring 1990s-era Marquis spas back to full working order. If your control system is failing, this hard-to-find board could be exactly the fix you need.
[Shop and order at Western Tub and Pool]
Why This Circuit Board?
Built for Precision Compatibility
Identified by chip number MTSICDR1A, not just its appearance—so you can be confident you're getting a board that actually matches your spa's software and function, not just one that looks the part.
Trusted Balboa Engineering
Cross-referenced to Balboa Number 53092, this board carries the reliability of one of the spa industry's most established control system manufacturers.
A Genuine Hard-to-Find Part
This board has been discontinued by the manufacturer, making sourcing a genuine replacement difficult. We stock and source these parts specifically because we know how hard they are to track down.
Backed by Real Support
Not sure if this is the right board for your spa? Our team is on hand to help you confirm fitment before you buy.
Compatible Hot Tub Models
The Marquis MTSICD Circuit Board 600-6246 is used in the following models:
1995 Mirage MTS I
1995 Quest MTS I
1995 Retreat MTS I
1996 Retreat MTS
1996 Quest MTS
Always confirm your chip number (MTSICDR1A) or Balboa number (53092) before ordering, as several boards share a similar appearance but run different software.
Associated Repair Parts
Circuit board replacements are often paired with the following components. Check our online catalogue or call us to see if you need these alongside your board:
Balboa Temperature/Hi-Limit Sensor Assembly
Marquis Spa topside control panels
Spa heater assemblies
Not sure what else your repair needs? Send us your make, model, and serial number and we'll help you build the full parts list.
Common Questions
How do I know if this is the right board for my spa?
Don't rely on looks alone. Check the white sticker near the center of your existing board for the chip number (MTSICDR1A) or look for the five-digit Balboa number (53092). If either matches, this board is a fit for your 1995–1996 Marquis Mirage, Quest, or Retreat MTS I model.
Is this board new or used?
We carry both new and remanufactured boards depending on availability, as this is a discontinued part. Contact us at fixmytub@gmail.com to confirm current stock condition before ordering.
What are the dimensions and weight of this board?
Circuit board dimensions and weight can vary slightly by production batch and region of origin. Contact our team with your part number for exact specifications, or send us a photo of your existing board for confirmation.
What if I can't find my exact part number?
Send us a picture of your current board along with your hot tub's make, model, and serial number. Our team will identify the correct replacement for you.
Do you ship internationally?
Yes. As an international e-retailer, we source parts from warehouses around the world. Because of this, Western Tub and Pool uses regional suffixes to identify part origin:
U – USA
C – Canada
E – Europe
A – Asia
Some parts may be duplicated across regions, so your order may ship from the warehouse closest to you.
Struggling to Find the Right Part?
Hard-to-find spa parts are our specialty. If you're not sure which board, sensor, or panel your spa needs, email us at fixmytub@gmail.com with pictures, your hot tub's make and model, and the serial number if available. We'll help you track down the exact match.
Shipping, Returns & Exchanges
We offer 30-day exchanges or store credit on eligible items. We do not provide refunds.
Return Process:
Customers are responsible for return shipping costs.
Items must be returned within 30 days of purchase.
Important Notes:
All recycled items are final sale and cannot be returned or exchanged.
Items must be in original condition to qualify for exchange or store credit.
As an international e-retailer and distributor, we work with manufacturers around the world. Cross-border shipments may incur additional fees and tariffs imposed by your local government, which will be the responsibility of the package recipient.
Get Your Spa Back Up and Running
Don't let a failed circuit board keep your hot tub out of commission. Shop and order at Western Tub and Pool, or call us at 1-855-248-0777 for expert help finding your exact part.
[Shop and order at Western Tub and Pool]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4585/6863/600-6246__42983.1789684137.PNG?c=2 "Restore Your Vintage Marquis Spa with the MTSICD Circuit Board 600-6246
The Marquis MTSICD Circuit Board (Part# 600-6246) is a genuine Balboa-engineered replacement built to bring 1990s-era Marquis spas back to full working order. If your control system is failing, this hard-to-find board could be exactly the fix you need.
[Shop and order at Western Tub and Pool]
Why This Circuit Board?
Built for Precision Compatibility
Identified by chip number MTSICDR1A, not just its appearance—so you can be confident you're getting a board that actually matches your spa's software and function, not just one that looks the part.
Trusted Balboa Engineering
Cross-referenced to Balboa Number 53092, this board carries the reliability of one of the spa industry's most established control system manufacturers.
A Genuine Hard-to-Find Part
This board has been discontinued by the manufacturer, making sourcing a genuine replacement difficult. We stock and source these parts specifically because we know how hard they are to track down.
Backed by Real Support
Not sure if this is the right board for your spa? Our team is on hand to help you confirm fitment before you buy.
Compatible Hot Tub Models
The Marquis MTSICD Circuit Board 600-6246 is used in the following models:
1995 Mirage MTS I
1995 Quest MTS I
1995 Retreat MTS I
1996 Retreat MTS
1996 Quest MTS
Always confirm your chip number (MTSICDR1A) or Balboa number (53092) before ordering, as several boards share a similar appearance but run different software.
Associated Repair Parts
Circuit board replacements are often paired with the following components. Check our online catalogue or call us to see if you need these alongside your board:
Balboa Temperature/Hi-Limit Sensor Assembly
Marquis Spa topside control panels
Spa heater assemblies
Not sure what else your repair needs? Send us your make, model, and serial number and we'll help you build the full parts list.
Common Questions
How do I know if this is the right board for my spa?
Don't rely on looks alone. Check the white sticker near the center of your existing board for the chip number (MTSICDR1A) or look for the five-digit Balboa number (53092). If either matches, this board is a fit for your 1995–1996 Marquis Mirage, Quest, or Retreat MTS I model.
Is this board new or used?
We carry both new and remanufactured boards depending on availability, as this is a discontinued part. Contact us at fixmytub@gmail.com to confirm current stock condition before ordering.
What are the dimensions and weight of this board?
Circuit board dimensions and weight can vary slightly by production batch and region of origin. Contact our team with your part number for exact specifications, or send us a photo of your existing board for confirmation.
What if I can't find my exact part number?
Send us a picture of your current board along with your hot tub's make, model, and serial number. Our team will identify the correct replacement for you.
Do you ship internationally?
Yes. As an international e-retailer, we source parts from warehouses around the world. Because of this, Western Tub and Pool uses regional suffixes to identify part origin:
U – USA
C – Canada
E – Europe
A – Asia
Some parts may be duplicated across regions, so your order may ship from the warehouse closest to you.
Struggling to Find the Right Part?
Hard-to-find spa parts are our specialty. If you're not sure which board, sensor, or panel your spa needs, email us at fixmytub@gmail.com with pictures, your hot tub's make and model, and the serial number if available. We'll help you track down the exact match.
Shipping, Returns & Exchanges
We offer 30-day exchanges or store credit on eligible items. We do not provide refunds.
Return Process:
Customers are responsible for return shipping costs.
Items must be returned within 30 days of purchase.
Important Notes:
All recycled items are final sale and cannot be returned or exchanged.
Items must be in original condition to qualify for exchange or store credit.
As an international e-retailer and distributor, we work with manufacturers around the world. Cross-border shipments may incur additional fees and tariffs imposed by your local government, which will be the responsibility of the package recipient.
Get Your Spa Back Up and Running
Don't let a failed circuit board keep your hot tub out of commission. Shop and order at Western Tub and Pool, or call us at 1-855-248-0777 for expert help finding your exact part.
[Shop and order at Western Tub and Pool]")