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Product Description
Balboa VS/EL Series Expander Board 33-53681-K
Bring your hot tub back to life with the genuine Balboa VS/EL Series Expander Board (Part #33-53681-K). This reliable, easy-to-install expander circuit board adds power and functionality to your spa control system—so you can get back to soaking, not stressing.
Shop and order at Western Tub and Pool. Call us at 1-855-248-0777 for expert help finding the right part.
The reliable spa part you've been searching for
Tracking down the right circuit board for your hot tub can feel like an impossible task. So many boards look alike, yet each one runs different software and chips. That's where we come in.
The Balboa 33-53681-K Expander Board (also known as Model/Series X-P231) is engineered for consistent, long-lasting performance. It's a popular replacement for VS500 Series and EL Series spa control systems, and it's designed for a hassle-free installation that gets your spa running again fast.
Key features and benefits
Built for dependable performance
This genuine Balboa Water Group board is designed for reliable, consistent operation and a long product lifespan—giving you peace of mind every time you fire up your spa.
Easy, plug-style installation
The board uses a Plug Phone Style (RJ45) connector for a straightforward setup, making it a perfect addition to any compatible system.
Full component support
Power everything your spa needs, including:
- Pump 1: 1-Speed Pump (with a 30 Amp Fuse)
- 240V Pump 1: 2-Speed
- 120V Ozone
- 12V Spa Light
Genuine quality, backed by warranty
This is an authentic Balboa Water Group part, backed by the manufacturer's warranty—no knockoffs, no guesswork.
Product specifications
|
Specification |
Detail |
|---|---|
|
Part Number |
33-53681-K |
|
SKU / MPN |
53681 |
|
Model / Series |
X-P231 |
|
UPC |
710033353901 |
|
Manufacturer |
Balboa Water Group |
|
Chip Models |
VS513Z / 515Z / 514SZ |
|
Connector |
Plug Phone Style (RJ45) |
|
Dimensions |
5.2" x 4.2" x 9.6" |
|
Approx. Weight |
4 lbs |
|
Warranty |
By manufacturer |
Compatible controls and hot tub models
The Balboa 33-53681-K Expander Board is used across a wide range of spa control systems and hot tub brands. Compatible chip models and controls include:
- VS513Z
- VS515Z
- VS514SZ
- VS500 Series controls
- EL Series controls (including EL2001)
This board is found in many popular hot tubs, including spas from Cal Spas (often referenced as part ELE09100226 / 6300) and other major brands using Balboa VS/EL Series control systems.
Not sure if this is the right board for your spa? Don't order based on looks alone—several boards appear identical but carry different software or chips. Check our online catalog or give us a call to confirm compatibility.
Frequently asked questions
How do I know if the 33-53681-K is the right board for my hot tub?
The safest way is to match your existing part number or chip model (VS513Z, 515Z, or 514SZ). Because many boards look alike but run different software, we strongly recommend confirming before you order. Send us your part number, or photos of your current board, and we'll help you out.
What hot tubs use this expander board?
It's compatible with Balboa VS500 Series and EL Series control systems, and is used in many spa brands, including Cal Spas. Contact us if your model isn't listed—chances are we can help.
Does the board require any setup after installation?
Yes. Circuit boards typically require correct board voltage installation, component voltage setup, and proper dipswitch settings. Some topside configuration may also be needed. Always reference your wiring schematics, or reach out to our team for guidance.
Is this a genuine Balboa part?
Absolutely. This is an authentic Balboa Water Group expander board, backed by the manufacturer's warranty.
Can I return the board if it doesn't work?
As with all electrical components, circuit boards are non-returnable except under the manufacturer's warranty. That's why we encourage you to confirm the correct part before ordering—we're happy to help.
Need help finding a hard-to-find part?
We specialize in tracking down those tricky, hard-to-find hot tub and spa replacement parts. Here's how to get personalized help:
- Email us at fixmytub@gmail.com
- Send us pictures of your part, along with the make, model, and serial number of your hot tub
- Check your part number if you already know it, then confirm it against our online catalog
- Call us at 1-855-248-0777 for assistance with this board and other spa parts
Order your Balboa 33-53681-K Expander Board today
Stop searching and start soaking. Get the genuine Balboa VS/EL Series Expander Board you need, with expert support every step of the way.
Shop and order at Western Tub and Pool. Call 1-855-248-0777 or email fixmytub@gmail.com today.
![Balboa VS/EL Series Expander Board 33-53544-K
Don't let a single faulty board sideline your spa. The Balboa VS/EL Series Expander Board 33-53544-K is the genuine replacement part you need to get your hot tub's secondary pump up and running again—backed by expert support from Western Tub and Pool.
[Call 1-855-248-0777 to order]
Get your hot tub back to full power
When your spa's expander board fails, you lose control of an entire pump—and with it, the jets and hydrotherapy you count on. This genuine Balboa Water Group® expander board mounts alongside your main board to run one additional single-speed pump (Pump 2), restoring the performance your hot tub was built to deliver.
Featuring trusted M7™ Technology and built for Balboa's Value Series and EL controls, it's a reliable, OEM-grade fix that keeps your spa working the way it should.
Shop and order at Western Tub and Pool.
Why choose this Balboa expander board?
Genuine Balboa Water Group® part
This is an authentic OEM board (SKU 53544 / MPN 53544 / UPC 637509177386), not a generic substitute—so you get the exact fit and function your control system expects.
Powers a second pump
Specifically designed for Pump 2 with a single-speed configuration, this board expands your system's capability to run one extra hot tub pump.
Proven M7™ Technology
Engineered with Balboa's M7™ Technology and the Extension Relay chip, it delivers dependable performance for your water heating and circulation needs.
Ready to install
Includes 3 cables for connectivity and installation, with a compact footprint that fits neatly inside your existing control box.
Backed by a manufacturer's warranty
Covered by a 1-year factory limited warranty for added peace of mind.
Compatible controls and hot tub models
The 33-53544-K expander board is used in many Balboa control systems and hot tub setups, including:
VS510SZ controllers
EL1000 / EL1000P2
EL2000
EL2001 / EL2001 M3 systems
Balboa Value Series controls
Associated and alternate reference numbers: 53544, 33-53544-K, 33-0029B-K, 103737, 304314, 9710-111, X801105, X300026, X-B, X-P.
Not sure if this is the right board for your spa? Many boards look identical but carry different software or chips. Always confirm your part number before ordering—or send us your hot tub's make, model, serial number, and a few photos and we'll help you find the exact match.
[Browse our online catalog] | [Call 1-855-248-0777]
Product specifications
Specification
Detail
Part / SKU
53544
MPN
53544
UPC
637509177386
Manufacturer
Balboa Water Group®
Model / Series
VS510SZ / Value Series
Function
Pump 2, single-speed expander
Dimensions
3.25" x 1.75" x 2"
Shipping weight
Approx. 5 lbs
Max load
12 Amp
Includes
3 cables
Warranty
1-year factory limited
Please note: Circuit boards are not "plug and play." They require correct component voltage setup and dipswitch configuration—follow the wiring schematics on the back of your spa pack cover. As an electrical item, this part is non-returnable except under manufacturer warranty. If you aren't comfortable troubleshooting and installing electrical spa components, please engage a qualified professional.
Frequently asked questions
What does this expander board do?
It mounts alongside your main control board to add the capability of running one additional single-speed pump (Pump 2), expanding your spa system's functionality.
Which control systems is it compatible with?
It's designed for Balboa VS510SZ and select EL Series systems, including EL1000, EL2000, and EL2001 M3. See the full compatibility list above, and contact us if your model isn't listed.
How do I know this is the right board for my hot tub?
Don't order based on appearance—many boards look the same but use different software or chips. Check your existing part number against the references above, or send us photos along with your spa's make, model, and serial number and we'll verify it for you.
Can I install it myself?
Many spa owners can, but installation requires correct voltage setup and dipswitch configuration following your spa pack's wiring schematics. If you're unsure about wiring or electrical components, we recommend professional installation.
Can I return it if it doesn't work?
Circuit boards are non-returnable electrical items, except under the 1-year manufacturer's warranty. That's why confirming the correct part before ordering is so important—and why our team is happy to help.
What if I can't find my part number?
No problem. Hard-to-find parts are our specialty. Email us at fixmytub@gmail.com with your part number (if known) or photos, make, model, and serial number of your hot tub, and we'll track down the right part for you.
Need help finding the right part?
Hard-to-find spa parts are what we do best. Whether you know your exact part number or just have a few photos of your hot tub, our team is ready to help you order with confidence.
Call: 1-855-248-0777
Email: fixmytub@gmail.com
Browse: our full online catalog of Balboa circuit boards and spa parts
Shop and order at Western Tub and Pool today.
[Call 1-855-248-0777 to order]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4414/6667/33-53544-k__64599.1781979501.PNG?c=2 "Balboa VS/EL Series Expander Board 33-53544-K
Don't let a single faulty board sideline your spa. The Balboa VS/EL Series Expander Board 33-53544-K is the genuine replacement part you need to get your hot tub's secondary pump up and running again—backed by expert support from Western Tub and Pool.
[Call 1-855-248-0777 to order]
Get your hot tub back to full power
When your spa's expander board fails, you lose control of an entire pump—and with it, the jets and hydrotherapy you count on. This genuine Balboa Water Group® expander board mounts alongside your main board to run one additional single-speed pump (Pump 2), restoring the performance your hot tub was built to deliver.
Featuring trusted M7™ Technology and built for Balboa's Value Series and EL controls, it's a reliable, OEM-grade fix that keeps your spa working the way it should.
Shop and order at Western Tub and Pool.
Why choose this Balboa expander board?
Genuine Balboa Water Group® part
This is an authentic OEM board (SKU 53544 / MPN 53544 / UPC 637509177386), not a generic substitute—so you get the exact fit and function your control system expects.
Powers a second pump
Specifically designed for Pump 2 with a single-speed configuration, this board expands your system's capability to run one extra hot tub pump.
Proven M7™ Technology
Engineered with Balboa's M7™ Technology and the Extension Relay chip, it delivers dependable performance for your water heating and circulation needs.
Ready to install
Includes 3 cables for connectivity and installation, with a compact footprint that fits neatly inside your existing control box.
Backed by a manufacturer's warranty
Covered by a 1-year factory limited warranty for added peace of mind.
Compatible controls and hot tub models
The 33-53544-K expander board is used in many Balboa control systems and hot tub setups, including:
VS510SZ controllers
EL1000 / EL1000P2
EL2000
EL2001 / EL2001 M3 systems
Balboa Value Series controls
Associated and alternate reference numbers: 53544, 33-53544-K, 33-0029B-K, 103737, 304314, 9710-111, X801105, X300026, X-B, X-P.
Not sure if this is the right board for your spa? Many boards look identical but carry different software or chips. Always confirm your part number before ordering—or send us your hot tub's make, model, serial number, and a few photos and we'll help you find the exact match.
[Browse our online catalog] | [Call 1-855-248-0777]
Product specifications
Specification
Detail
Part / SKU
53544
MPN
53544
UPC
637509177386
Manufacturer
Balboa Water Group®
Model / Series
VS510SZ / Value Series
Function
Pump 2, single-speed expander
Dimensions
3.25\" x 1.75\" x 2\"
Shipping weight
Approx. 5 lbs
Max load
12 Amp
Includes
3 cables
Warranty
1-year factory limited
Please note: Circuit boards are not \"plug and play.\" They require correct component voltage setup and dipswitch configuration—follow the wiring schematics on the back of your spa pack cover. As an electrical item, this part is non-returnable except under manufacturer warranty. If you aren't comfortable troubleshooting and installing electrical spa components, please engage a qualified professional.
Frequently asked questions
What does this expander board do?
It mounts alongside your main control board to add the capability of running one additional single-speed pump (Pump 2), expanding your spa system's functionality.
Which control systems is it compatible with?
It's designed for Balboa VS510SZ and select EL Series systems, including EL1000, EL2000, and EL2001 M3. See the full compatibility list above, and contact us if your model isn't listed.
How do I know this is the right board for my hot tub?
Don't order based on appearance—many boards look the same but use different software or chips. Check your existing part number against the references above, or send us photos along with your spa's make, model, and serial number and we'll verify it for you.
Can I install it myself?
Many spa owners can, but installation requires correct voltage setup and dipswitch configuration following your spa pack's wiring schematics. If you're unsure about wiring or electrical components, we recommend professional installation.
Can I return it if it doesn't work?
Circuit boards are non-returnable electrical items, except under the 1-year manufacturer's warranty. That's why confirming the correct part before ordering is so important—and why our team is happy to help.
What if I can't find my part number?
No problem. Hard-to-find parts are our specialty. Email us at fixmytub@gmail.com with your part number (if known) or photos, make, model, and serial number of your hot tub, and we'll track down the right part for you.
Need help finding the right part?
Hard-to-find spa parts are what we do best. Whether you know your exact part number or just have a few photos of your hot tub, our team is ready to help you order with confidence.
Call: 1-855-248-0777
Email: fixmytub@gmail.com
Browse: our full online catalog of Balboa circuit boards and spa parts
Shop and order at Western Tub and Pool today.
[Call 1-855-248-0777 to order]")
![Balboa VS/EL Series Expander Board (53681) — Hard-to-Find Hot Tub Part, Delivered Fast
Restore your hot tub's second pump circuit with the factory-original Balboa X-P231 Expander Board. Shop and order at Western Tub and Pool — or call us at 1-855-248-0777 for expert help finding the right part.
[Shop Now] [Call Us: 1-855-248-0777]
What Is the Balboa 53681 Expander Board?
The Balboa X-P231 Expander Board (part number 53681) is a factory-original daughter board designed to extend the pump output capacity of compatible Balboa VS and EL-series spa control systems. This is not a standalone main board — it mounts inside your spa pack alongside your existing main board to add a dedicated 1-speed pump output with its own on-board 30-amp fuse.
The 53681 is a direct upgraded replacement for the discontinued 53290 expander board, featuring a higher 30-amp fuse rating that supports full-sized jet pumps — something the older 10-amp design simply could not handle.
Key Features & Specifications
What's Included
Expander circuit board (PCB)
All required connection cables
30-amp on-board fuse
Technical Specifications
Specification
Detail
Part Number
53681
Model / Series
X-P231
Board Type
Expander / Daughter Board
Pump Output
1-Speed Pump (Pump 2 circuit)
On-Board Fuse Rating
30 Amp
Max Load
12A
Ozone Output
120V
Light Output
12V spa light
Connector Type
RJ45 (Phone-style plug)
Dimensions
5.2" x 4.2" x 9.6"
Weight
8.16 oz
Warranty
1-Year Factory Limited Warranty (Balboa Water Group)
Color
Black
Compatible Control Systems
The Balboa 53681 Expander Board works with the following Balboa control systems:
Control System
Compatibility
Balboa VS513Z
Primary compatible system
Balboa VS514SZ
Primary compatible system
Balboa VS515Z
Primary compatible system
Balboa EL2001
Compatible EL-series system
Balboa BP501
Compatible BP-series system
Not sure if this is the right board for your system? Call us at 1-855-248-0777 or email fixmytub@gmail.com — we're here to help.
Hot Tub Brands That Use This Expander Board
The 53681 was used as original equipment across several well-known hot tub brands built on Balboa VS/EL control platforms:
Clearwater Spas — used as original equipment
Cal Spas — OEM part number ELE09100226
Beachcomber Hot Tubs — used as original equipment
Thermo Spas — used as original equipment
Vita Spas — used as original equipment
Cross-Reference & Replacement Part Numbers
If you're searching by a different part number, the Balboa 53681 may be the part you need. Known cross-references include:
Part Number
Notes
53290
Discontinued predecessor — 53681 is the direct upgraded replacement
33-53681-K
HydroQuip cross-reference
33-0029A
HydroQuip alternate reference
ELE09100226
Cal Spas OEM part number
X-P231
Balboa model series name
55121
Alternate cross-reference
55323
Alternate cross-reference
389282
Alternate cross-reference
X300026
Alternate cross-reference
3-60-0112
Alternate cross-reference
59-138-1800
Alternate cross-reference
Why Choose the Balboa 53681 Expander Board?
Factory-Original OEM Quality
Manufactured by Balboa Water Group — the original maker of VS and EL control systems. Not a third-party clone.
Upgraded From the 53290
The discontinued 53290 carried only a 10-amp fuse and was limited to blower or circulation pump duty. The 53681 steps up to a 30-amp fuse, meaning it can handle a full-sized 1-speed jet pump without overloading your system.
Easy Plug-and-Connect Installation
The RJ45 phone-style connector makes attachment to the main board fast and secure. Ships as a complete kit with all necessary cables included.
1-Year Factory Warranty
Covered under Balboa Water Group's manufacturer's limited warranty, giving you peace of mind long after installation.
Wide OEM Brand Coverage
Used as original equipment in spas from Clearwater, Cal Spas, Beachcomber, Thermo Spas, and Vita Spas — one of the most widely used expander boards in the industry.
Frequently Asked Questions
Is the 53681 a complete main control board?
No. The 53681 is an expander (daughter) board only. It must be installed alongside a compatible VS513Z, VS515Z, VS514SZ, or EL2001 main board — it does not replace the main board.
How do I know if my hot tub needs this expander board?
Check the part number on your existing expander board. If it shows 53290 or X-P231, the 53681 is your replacement. You can also call us at 1-855-248-0777 or send us a photo of your board to fixmytub@gmail.com and we'll confirm the correct part for you.
What is the difference between the 53681 and the older 53290?
The 53290 is discontinued. It had a 10-amp fuse and was only rated for a blower or circulation pump. The 53681 replaces it with a 30-amp fuse, allowing it to drive a full-sized 1-speed jet pump. The connectors and mounting are the same, so it is a direct drop-in replacement.
Will I need to configure DIP switches after installation?
Most likely yes. DIP switch settings on the main board control how the expander circuit behaves. Refer to the wiring schematic for your specific main board. Contact us if you need guidance — our team is happy to help.
Does this board work with VS520-series systems?
No. The 53681 X-P231 is specified for VS513Z, VS515Z, VS514SZ, and EL2001 systems. For VS520-series systems, a different expander board is typically required. Call us and we'll point you in the right direction.
Can I return the board if it doesn't fit my system?
Circuit boards are non-returnable per manufacturer policy. Please verify compatibility before ordering. We strongly encourage you to check your part number or contact us first — that's what we're here for.
Does installation require a licensed electrician?
Yes. NEC and most local codes require a licensed electrician for all hot tub electrical work. Incorrect installation can damage the board and will void the manufacturer's warranty.
Not Sure Which Part You Need? We Can Help.
Finding the right hot tub part can be tricky — especially when part numbers vary by OEM brand or firmware revision. At Western Tub and Pool, we specialize in hard-to-find hot tub replacement parts and have the expertise to help you identify exactly what you need.
Here's how to get help fast:
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
Send us: a photo of your existing board, along with your hot tub's make, model, and serial number — and we'll do the rest.
Shop and Order at Western Tub and Pool
Get the Balboa VS/EL Series Expander Board (53681) shipped fast from Western Tub and Pool. Browse our full online catalogue for more Balboa circuit boards, spa packs, pumps, heaters, and accessories — or call our team for personalized assistance.
[Order Now] [Browse Our Full Catalogue] [Call 1-855-248-0777]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4413/6666/exboard__28054.1781978326.PNG?c=2 "Balboa VS/EL Series Expander Board (53681) — Hard-to-Find Hot Tub Part, Delivered Fast
Restore your hot tub's second pump circuit with the factory-original Balboa X-P231 Expander Board. Shop and order at Western Tub and Pool — or call us at 1-855-248-0777 for expert help finding the right part.
[Shop Now] [Call Us: 1-855-248-0777]
What Is the Balboa 53681 Expander Board?
The Balboa X-P231 Expander Board (part number 53681) is a factory-original daughter board designed to extend the pump output capacity of compatible Balboa VS and EL-series spa control systems. This is not a standalone main board — it mounts inside your spa pack alongside your existing main board to add a dedicated 1-speed pump output with its own on-board 30-amp fuse.
The 53681 is a direct upgraded replacement for the discontinued 53290 expander board, featuring a higher 30-amp fuse rating that supports full-sized jet pumps — something the older 10-amp design simply could not handle.
Key Features & Specifications
What's Included
Expander circuit board (PCB)
All required connection cables
30-amp on-board fuse
Technical Specifications
Specification
Detail
Part Number
53681
Model / Series
X-P231
Board Type
Expander / Daughter Board
Pump Output
1-Speed Pump (Pump 2 circuit)
On-Board Fuse Rating
30 Amp
Max Load
12A
Ozone Output
120V
Light Output
12V spa light
Connector Type
RJ45 (Phone-style plug)
Dimensions
5.2\" x 4.2\" x 9.6\"
Weight
8.16 oz
Warranty
1-Year Factory Limited Warranty (Balboa Water Group)
Color
Black
Compatible Control Systems
The Balboa 53681 Expander Board works with the following Balboa control systems:
Control System
Compatibility
Balboa VS513Z
Primary compatible system
Balboa VS514SZ
Primary compatible system
Balboa VS515Z
Primary compatible system
Balboa EL2001
Compatible EL-series system
Balboa BP501
Compatible BP-series system
Not sure if this is the right board for your system? Call us at 1-855-248-0777 or email fixmytub@gmail.com — we're here to help.
Hot Tub Brands That Use This Expander Board
The 53681 was used as original equipment across several well-known hot tub brands built on Balboa VS/EL control platforms:
Clearwater Spas — used as original equipment
Cal Spas — OEM part number ELE09100226
Beachcomber Hot Tubs — used as original equipment
Thermo Spas — used as original equipment
Vita Spas — used as original equipment
Cross-Reference & Replacement Part Numbers
If you're searching by a different part number, the Balboa 53681 may be the part you need. Known cross-references include:
Part Number
Notes
53290
Discontinued predecessor — 53681 is the direct upgraded replacement
33-53681-K
HydroQuip cross-reference
33-0029A
HydroQuip alternate reference
ELE09100226
Cal Spas OEM part number
X-P231
Balboa model series name
55121
Alternate cross-reference
55323
Alternate cross-reference
389282
Alternate cross-reference
X300026
Alternate cross-reference
3-60-0112
Alternate cross-reference
59-138-1800
Alternate cross-reference
Why Choose the Balboa 53681 Expander Board?
Factory-Original OEM Quality
Manufactured by Balboa Water Group — the original maker of VS and EL control systems. Not a third-party clone.
Upgraded From the 53290
The discontinued 53290 carried only a 10-amp fuse and was limited to blower or circulation pump duty. The 53681 steps up to a 30-amp fuse, meaning it can handle a full-sized 1-speed jet pump without overloading your system.
Easy Plug-and-Connect Installation
The RJ45 phone-style connector makes attachment to the main board fast and secure. Ships as a complete kit with all necessary cables included.
1-Year Factory Warranty
Covered under Balboa Water Group's manufacturer's limited warranty, giving you peace of mind long after installation.
Wide OEM Brand Coverage
Used as original equipment in spas from Clearwater, Cal Spas, Beachcomber, Thermo Spas, and Vita Spas — one of the most widely used expander boards in the industry.
Frequently Asked Questions
Is the 53681 a complete main control board?
No. The 53681 is an expander (daughter) board only. It must be installed alongside a compatible VS513Z, VS515Z, VS514SZ, or EL2001 main board — it does not replace the main board.
How do I know if my hot tub needs this expander board?
Check the part number on your existing expander board. If it shows 53290 or X-P231, the 53681 is your replacement. You can also call us at 1-855-248-0777 or send us a photo of your board to fixmytub@gmail.com and we'll confirm the correct part for you.
What is the difference between the 53681 and the older 53290?
The 53290 is discontinued. It had a 10-amp fuse and was only rated for a blower or circulation pump. The 53681 replaces it with a 30-amp fuse, allowing it to drive a full-sized 1-speed jet pump. The connectors and mounting are the same, so it is a direct drop-in replacement.
Will I need to configure DIP switches after installation?
Most likely yes. DIP switch settings on the main board control how the expander circuit behaves. Refer to the wiring schematic for your specific main board. Contact us if you need guidance — our team is happy to help.
Does this board work with VS520-series systems?
No. The 53681 X-P231 is specified for VS513Z, VS515Z, VS514SZ, and EL2001 systems. For VS520-series systems, a different expander board is typically required. Call us and we'll point you in the right direction.
Can I return the board if it doesn't fit my system?
Circuit boards are non-returnable per manufacturer policy. Please verify compatibility before ordering. We strongly encourage you to check your part number or contact us first — that's what we're here for.
Does installation require a licensed electrician?
Yes. NEC and most local codes require a licensed electrician for all hot tub electrical work. Incorrect installation can damage the board and will void the manufacturer's warranty.
Not Sure Which Part You Need? We Can Help.
Finding the right hot tub part can be tricky — especially when part numbers vary by OEM brand or firmware revision. At Western Tub and Pool, we specialize in hard-to-find hot tub replacement parts and have the expertise to help you identify exactly what you need.
Here's how to get help fast:
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
Send us: a photo of your existing board, along with your hot tub's make, model, and serial number — and we'll do the rest.
Shop and Order at Western Tub and Pool
Get the Balboa VS/EL Series Expander Board (53681) shipped fast from Western Tub and Pool. Browse our full online catalogue for more Balboa circuit boards, spa packs, pumps, heaters, and accessories — or call our team for personalized assistance.
[Order Now] [Browse Our Full Catalogue] [Call 1-855-248-0777]")
![Balboa EL8000 Series Expander Board 33-53680-K — Genuine OEM Replacement Part
Can't get your hot tub's pump running the way it should? The Balboa EL8000 Series Expander Board (Part No. 33-53680-K) is the genuine OEM circuit board designed to restore full functionality to your EL Series spa control system — fast.
Shop and order at Western Tub and Pool.
[Call us now: 1-855-248-0777]
What Is the Balboa 33-53680-K Expander Board?
The Balboa 33-53680-K (also known as the X-P632 or 53680) is a genuine expander — or "daughter" — printed circuit board (PCB) manufactured by Balboa Water Group. It mounts alongside the main control board in select EL Series hot tub control systems, expanding the system's relay capacity to support additional pump functions.
This is a hard-to-find part, and Western Tub and Pool stocks it so you don't have to wait weeks for your spa to get back up and running.
Product Specifications
Part Number: 33-53680-K
Also Known As: 53680 / X-P632
Manufacturer: Balboa Water Group
Type: Expander (Daughter) PCB — 2 Relay
Onboard Fuse: 30 Amp
Maximum Load: 12 Amp
Connector: Plug Molex Style
Pump Support: 2-Speed Pump (Pump 2 Sp)
Dimensions: 3.15" x 1.85" x 6"
Weight: Approx. 0.3 lbs
Warranty: 1-Year Factory Limited Warranty
UPC: 997847980230
Compatible Control Systems
The Balboa 33-53680-K Expander Board is designed for use with the following Balboa EL Series spa control systems:
Balboa EL2000
Balboa EL2001
Balboa EL8000
Note: This board is mounted in addition to the main control board in these systems. If you are unsure whether this part is compatible with your specific hot tub setup, call our team at 1-855-248-0777 before ordering.
Hot Tub Models That May Use This Part
Many hot tub brands use Balboa EL Series control systems, which means the 33-53680-K expander board may be found in a wide range of models. These include, but are not limited to, spas manufactured by:
Sundance Spas
Jacuzzi
Cal Spas
Marquis Spas
Artesian Spas
Gatsby Spas
LA Spas
Coleman Spas
PDC Spas
Dimension One Spas
Not sure if your hot tub uses this board? Check the label on your existing control board, refer to your owner's manual, or send us your make, model, and serial number at fixmytub@gmail.com and our team will help you confirm the right part.
Why Order From Western Tub and Pool?
Genuine Balboa OEM part — not an aftermarket substitute
Expert support from a team that knows hot tub repair inside and out
Hard-to-find parts sourced and ready to ship
Personalized assistance — call, email, or send us photos and we'll help you identify the right component
Frequently Asked Questions
What does an expander board do?
An expander board — also called a daughter board — connects to your main spa control board to add relay capacity. In this case, the 33-53680-K adds two relays, which allows your EL Series system to control additional pump functions, such as a 2-speed pump.
How do I know if the 33-53680-K is the right board for my hot tub?
The easiest way is to check the part number printed directly on your existing expander board. If it reads 33-53680-K, 53680, or X-P632, this is your board. Alternatively, you can email us a photo of your existing board and your hot tub's make, model, and serial number at fixmytub@gmail.com, and our team will verify compatibility for you.
Can I install this board myself?
This is rated as a complexity Level 5 installation. It requires specific electrical knowledge, tools, and spa repair experience. If you are not confident in your ability to safely troubleshoot and install a PCB replacement, we strongly recommend engaging a qualified hot tub technician. Improper installation voids the manufacturer's warranty, and PCBs cannot be returned or exchanged once installed.
What is the warranty on this part?
The 33-53680-K comes with a 1-year factory limited warranty from Balboa Water Group. Note that electrical or physical damage resulting from improper installation or incorrect PCB selection will void this warranty.
Can I return this part if it doesn't fit?
PCBs are non-returnable and non-exchangeable once opened or installed. If you are unsure about compatibility, please contact us before purchasing — we are happy to help you confirm the correct part number for your system.
How can I order this part?
You can call us directly at 1-855-248-0777, browse our online catalog, or email fixmytub@gmail.com with your part number, hot tub make, model, and serial number. Our team will get back to you promptly.
Can't Find the Right Part?
Don't let a missing part number hold up your repair. Our team at Western Tub and Pool specializes in hard-to-find hot tub parts and can help you identify exactly what you need.
Here's what to send us:
Your hot tub's make and model
The serial number (usually on a label inside the equipment compartment)
A photo of your existing control board or the part you need to replace
Your known part number, if available
Send everything to fixmytub@gmail.com and one of our specialists will get back to you with a solution.
Get Your Spa Running Again — Shop and Order at Western Tub and Pool
The Balboa 33-53680-K Expander Board is in stock and ready to ship. Don't spend another weekend without your hot tub.
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
[Shop Our Full Balboa Circuit Board Catalog]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4410/6663/33-53680-k__04352.1781974262.PNG?c=2 "Balboa EL8000 Series Expander Board 33-53680-K — Genuine OEM Replacement Part
Can't get your hot tub's pump running the way it should? The Balboa EL8000 Series Expander Board (Part No. 33-53680-K) is the genuine OEM circuit board designed to restore full functionality to your EL Series spa control system — fast.
Shop and order at Western Tub and Pool.
[Call us now: 1-855-248-0777]
What Is the Balboa 33-53680-K Expander Board?
The Balboa 33-53680-K (also known as the X-P632 or 53680) is a genuine expander — or \"daughter\" — printed circuit board (PCB) manufactured by Balboa Water Group. It mounts alongside the main control board in select EL Series hot tub control systems, expanding the system's relay capacity to support additional pump functions.
This is a hard-to-find part, and Western Tub and Pool stocks it so you don't have to wait weeks for your spa to get back up and running.
Product Specifications
Part Number: 33-53680-K
Also Known As: 53680 / X-P632
Manufacturer: Balboa Water Group
Type: Expander (Daughter) PCB — 2 Relay
Onboard Fuse: 30 Amp
Maximum Load: 12 Amp
Connector: Plug Molex Style
Pump Support: 2-Speed Pump (Pump 2 Sp)
Dimensions: 3.15\" x 1.85\" x 6\"
Weight: Approx. 0.3 lbs
Warranty: 1-Year Factory Limited Warranty
UPC: 997847980230
Compatible Control Systems
The Balboa 33-53680-K Expander Board is designed for use with the following Balboa EL Series spa control systems:
Balboa EL2000
Balboa EL2001
Balboa EL8000
Note: This board is mounted in addition to the main control board in these systems. If you are unsure whether this part is compatible with your specific hot tub setup, call our team at 1-855-248-0777 before ordering.
Hot Tub Models That May Use This Part
Many hot tub brands use Balboa EL Series control systems, which means the 33-53680-K expander board may be found in a wide range of models. These include, but are not limited to, spas manufactured by:
Sundance Spas
Jacuzzi
Cal Spas
Marquis Spas
Artesian Spas
Gatsby Spas
LA Spas
Coleman Spas
PDC Spas
Dimension One Spas
Not sure if your hot tub uses this board? Check the label on your existing control board, refer to your owner's manual, or send us your make, model, and serial number at fixmytub@gmail.com and our team will help you confirm the right part.
Why Order From Western Tub and Pool?
Genuine Balboa OEM part — not an aftermarket substitute
Expert support from a team that knows hot tub repair inside and out
Hard-to-find parts sourced and ready to ship
Personalized assistance — call, email, or send us photos and we'll help you identify the right component
Frequently Asked Questions
What does an expander board do?
An expander board — also called a daughter board — connects to your main spa control board to add relay capacity. In this case, the 33-53680-K adds two relays, which allows your EL Series system to control additional pump functions, such as a 2-speed pump.
How do I know if the 33-53680-K is the right board for my hot tub?
The easiest way is to check the part number printed directly on your existing expander board. If it reads 33-53680-K, 53680, or X-P632, this is your board. Alternatively, you can email us a photo of your existing board and your hot tub's make, model, and serial number at fixmytub@gmail.com, and our team will verify compatibility for you.
Can I install this board myself?
This is rated as a complexity Level 5 installation. It requires specific electrical knowledge, tools, and spa repair experience. If you are not confident in your ability to safely troubleshoot and install a PCB replacement, we strongly recommend engaging a qualified hot tub technician. Improper installation voids the manufacturer's warranty, and PCBs cannot be returned or exchanged once installed.
What is the warranty on this part?
The 33-53680-K comes with a 1-year factory limited warranty from Balboa Water Group. Note that electrical or physical damage resulting from improper installation or incorrect PCB selection will void this warranty.
Can I return this part if it doesn't fit?
PCBs are non-returnable and non-exchangeable once opened or installed. If you are unsure about compatibility, please contact us before purchasing — we are happy to help you confirm the correct part number for your system.
How can I order this part?
You can call us directly at 1-855-248-0777, browse our online catalog, or email fixmytub@gmail.com with your part number, hot tub make, model, and serial number. Our team will get back to you promptly.
Can't Find the Right Part?
Don't let a missing part number hold up your repair. Our team at Western Tub and Pool specializes in hard-to-find hot tub parts and can help you identify exactly what you need.
Here's what to send us:
Your hot tub's make and model
The serial number (usually on a label inside the equipment compartment)
A photo of your existing control board or the part you need to replace
Your known part number, if available
Send everything to fixmytub@gmail.com and one of our specialists will get back to you with a solution.
Get Your Spa Running Again — Shop and Order at Western Tub and Pool
The Balboa 33-53680-K Expander Board is in stock and ready to ship. Don't spend another weekend without your hot tub.
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
[Shop Our Full Balboa Circuit Board Catalog]")
![Reliable Balboa BP7 Expander Boards
Get your hot tub running smoothly again with high-quality, recycled replacement parts. We make it easy to find the exact circuit board you need to fix your spa quickly and affordably.
[Shop and order at Western tub and pool]
The smart way to repair your hot tub
Why overpay for brand-new components when you can get thoroughly inspected, recycled hot tub repair parts? Western tub and pool specializes in keeping your spa in perfect condition with reliable replacement parts and expert customer support.
Balboa BP7 Expander Board (33-59097-K)
Our top-selling recycled circuit board is the perfect solution for restoring your spa's control system.
Product Weight: Approx. 1.2 lbs
Product Dimensions: 11" x 5" x 2" (Standard BP series specs)
Compatibility: Used in many standard spa models and compatible controls. Check here and our online catalogue or call us to verify fitment for your specific setup.
Unmatched customer support
Not sure what part you need? We offer hard to find product part assistance. Just send us an email to fixmytub@gmail.com. Check your part number if known, or send us pictures, the make and model of the hot tub, and the serial number. You can also call us directly for information or assistance with these replacement hot tub repair parts and other spa parts at 1-855-248-0777.
Frequently asked questions
How do I know if this board is compatible with my hot tub?
The Balboa BP7 Expander Board (33-59097-K) is compatible with a wide range of popular hot tub models. If you are unsure, simply check your current part number or contact our team with your hot tub's make, model, and serial number, and we will verify the compatibility for you.
Are recycled spa parts reliable?
Yes. All of our recycled hot tub spa replacement parts, including Balboa Circuit Boards, are carefully inspected to ensure they meet performance standards, offering you a cost-effective and reliable repair solution.
What if I cannot find the part I am looking for?
If you are struggling to find a specific component, we are here to help. Take a picture of your current part and email it to fixmytub@gmail.com, or call us at 1-855-248-0777.
Get your spa back in action
Don't let a broken circuit board ruin your relaxation. Shop and order at Western tub and pool today.
[Contact us to order]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4404/6657/33-590974-k__65202.1780770976.PNG?c=2 "Reliable Balboa BP7 Expander Boards
Get your hot tub running smoothly again with high-quality, recycled replacement parts. We make it easy to find the exact circuit board you need to fix your spa quickly and affordably.
[Shop and order at Western tub and pool]
The smart way to repair your hot tub
Why overpay for brand-new components when you can get thoroughly inspected, recycled hot tub repair parts? Western tub and pool specializes in keeping your spa in perfect condition with reliable replacement parts and expert customer support.
Balboa BP7 Expander Board (33-59097-K)
Our top-selling recycled circuit board is the perfect solution for restoring your spa's control system.
Product Weight: Approx. 1.2 lbs
Product Dimensions: 11\" x 5\" x 2\" (Standard BP series specs)
Compatibility: Used in many standard spa models and compatible controls. Check here and our online catalogue or call us to verify fitment for your specific setup.
Unmatched customer support
Not sure what part you need? We offer hard to find product part assistance. Just send us an email to fixmytub@gmail.com. Check your part number if known, or send us pictures, the make and model of the hot tub, and the serial number. You can also call us directly for information or assistance with these replacement hot tub repair parts and other spa parts at 1-855-248-0777.
Frequently asked questions
How do I know if this board is compatible with my hot tub?
The Balboa BP7 Expander Board (33-59097-K) is compatible with a wide range of popular hot tub models. If you are unsure, simply check your current part number or contact our team with your hot tub's make, model, and serial number, and we will verify the compatibility for you.
Are recycled spa parts reliable?
Yes. All of our recycled hot tub spa replacement parts, including Balboa Circuit Boards, are carefully inspected to ensure they meet performance standards, offering you a cost-effective and reliable repair solution.
What if I cannot find the part I am looking for?
If you are struggling to find a specific component, we are here to help. Take a picture of your current part and email it to fixmytub@gmail.com, or call us at 1-855-248-0777.
Get your spa back in action
Don't let a broken circuit board ruin your relaxation. Shop and order at Western tub and pool today.
[Contact us to order]")
![Get Your BP100 Back to Full Function
Don't let a faulty circuit board keep your hot tub or pool system down. Western Tub and Pool's genuine Balboa Daughter expander circuit boards restore your BP100 to peak performance quickly and reliably.
[Shop balboa Bp100 expansion Circuit Boards Now at 1-855-248-0777]
Restore Full System Functionality
When your BP100 system starts malfunctioning, you need a reliable solution fast. Our genuine Balboa Daughter expander circuit boards are designed specifically for BP100 systems, ensuring seamless compatibility and immediate restoration of all functions.
Why Choose Our Balboa Circuit Boards?
Genuine Balboa Components
We stock only authentic Balboa Daughter expander circuit boards, guaranteeing perfect compatibility with your BP100 system.
Quick Function Restoration
Get your hot tub or pool system back online fast with circuit boards that restore all original functions without complicated installations.
Expert Technical Support
Our team understands BP100 systems inside and out, providing guidance to ensure you get the right part for your specific repair needs.
Reliable Performance
Built to Balboa's exacting standards, these circuit boards deliver the long-term reliability your system demands.
Frequently Asked Questions
How do I know if I need a daughter expander circuit board?
Common signs include loss of specific functions, error codes on your display, or certain features not responding. Our technical team can help diagnose your specific issue.
Are these compatible with all BP100 systems?
Yes, our Balboa Daughter expander circuit boards are designed specifically for BP100 systems and maintain full compatibility with all standard configurations.
How quickly can I get my system running again?
Most customers can complete the installation within 30 minutes using basic tools. If your not sure have an Technician assist you .
What if I'm not sure which board I need?
Contact our technical support team with your system model and symptoms. We'll help identify the exact circuit board required for your repair.
Get Your System Running Today
Don't let a faulty circuit board keep you out of the water. Order your genuine Balboa Daughter expander circuit board now and restore your BP100 to full function.
[Shop balboa expansion Bp100 Circuit Boards Now 1-855-248-0777]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/3875/5589/Balboa_bp100_daughter_board_at_western_tub_and_pool_._403-248-0777__52017.1759877102.png?c=2 "Get Your BP100 Back to Full Function
Don't let a faulty circuit board keep your hot tub or pool system down. Western Tub and Pool's genuine Balboa Daughter expander circuit boards restore your BP100 to peak performance quickly and reliably.
[Shop balboa Bp100 expansion Circuit Boards Now at 1-855-248-0777]
Restore Full System Functionality
When your BP100 system starts malfunctioning, you need a reliable solution fast. Our genuine Balboa Daughter expander circuit boards are designed specifically for BP100 systems, ensuring seamless compatibility and immediate restoration of all functions.
Why Choose Our Balboa Circuit Boards?
Genuine Balboa Components
We stock only authentic Balboa Daughter expander circuit boards, guaranteeing perfect compatibility with your BP100 system.
Quick Function Restoration
Get your hot tub or pool system back online fast with circuit boards that restore all original functions without complicated installations.
Expert Technical Support
Our team understands BP100 systems inside and out, providing guidance to ensure you get the right part for your specific repair needs.
Reliable Performance
Built to Balboa's exacting standards, these circuit boards deliver the long-term reliability your system demands.
Frequently Asked Questions
How do I know if I need a daughter expander circuit board?
Common signs include loss of specific functions, error codes on your display, or certain features not responding. Our technical team can help diagnose your specific issue.
Are these compatible with all BP100 systems?
Yes, our Balboa Daughter expander circuit boards are designed specifically for BP100 systems and maintain full compatibility with all standard configurations.
How quickly can I get my system running again?
Most customers can complete the installation within 30 minutes using basic tools. If your not sure have an Technician assist you .
What if I'm not sure which board I need?
Contact our technical support team with your system model and symptoms. We'll help identify the exact circuit board required for your repair.
Get Your System Running Today
Don't let a faulty circuit board keep you out of the water. Order your genuine Balboa Daughter expander circuit board now and restore your BP100 to full function.
[Shop balboa expansion Bp100 Circuit Boards Now 1-855-248-0777]")
![Get Your BP100 Back to Full Function
Don't let a faulty circuit board keep your hot tub or pool system down. Western Tub and Pool's genuine Balboa Daughter expander circuit boards restore your BP100 to peak performance quickly and reliably.
[Shop balboa Bp100 expansion Circuit Boards Now at 1-855-248-0777]
Restore Full System Functionality
When your BP100 system starts malfunctioning, you need a reliable solution fast. Our genuine Balboa Daughter expander circuit boards are designed specifically for BP100 systems, ensuring seamless compatibility and immediate restoration of all functions.
Why Choose Our Balboa Circuit Boards?
Genuine Balboa Components
We stock only authentic Balboa Daughter expander circuit boards, guaranteeing perfect compatibility with your BP100 system.
Quick Function Restoration
Get your hot tub or pool system back online fast with circuit boards that restore all original functions without complicated installations.
Expert Technical Support
Our team understands BP100 systems inside and out, providing guidance to ensure you get the right part for your specific repair needs.
Reliable Performance
Built to Balboa's exacting standards, these circuit boards deliver the long-term reliability your system demands.
Frequently Asked Questions
How do I know if I need a daughter expander circuit board?
Common signs include loss of specific functions, error codes on your display, or certain features not responding. Our technical team can help diagnose your specific issue.
Are these compatible with all BP100 systems?
Yes, our Balboa Daughter expander circuit boards are designed specifically for BP100 systems and maintain full compatibility with all standard configurations.
How quickly can I get my system running again?
Most customers can complete the installation within 30 minutes using basic tools. If your not sure have an Technician assist you .
What if I'm not sure which board I need?
Contact our technical support team with your system model and symptoms. We'll help identify the exact circuit board required for your repair.
Get Your System Running Today
Don't let a faulty circuit board keep you out of the water. Order your genuine Balboa Daughter expander circuit board now and restore your BP100 to full function.
[Shop balboa expansion Bp100 Circuit Boards Now 1-855-248-0777]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/3875/5588/Balboa_bp100_daughter_board_at_western_tub_and_pool_403-248-0777__64220.1759877034.png?c=2 "Get Your BP100 Back to Full Function
Don't let a faulty circuit board keep your hot tub or pool system down. Western Tub and Pool's genuine Balboa Daughter expander circuit boards restore your BP100 to peak performance quickly and reliably.
[Shop balboa Bp100 expansion Circuit Boards Now at 1-855-248-0777]
Restore Full System Functionality
When your BP100 system starts malfunctioning, you need a reliable solution fast. Our genuine Balboa Daughter expander circuit boards are designed specifically for BP100 systems, ensuring seamless compatibility and immediate restoration of all functions.
Why Choose Our Balboa Circuit Boards?
Genuine Balboa Components
We stock only authentic Balboa Daughter expander circuit boards, guaranteeing perfect compatibility with your BP100 system.
Quick Function Restoration
Get your hot tub or pool system back online fast with circuit boards that restore all original functions without complicated installations.
Expert Technical Support
Our team understands BP100 systems inside and out, providing guidance to ensure you get the right part for your specific repair needs.
Reliable Performance
Built to Balboa's exacting standards, these circuit boards deliver the long-term reliability your system demands.
Frequently Asked Questions
How do I know if I need a daughter expander circuit board?
Common signs include loss of specific functions, error codes on your display, or certain features not responding. Our technical team can help diagnose your specific issue.
Are these compatible with all BP100 systems?
Yes, our Balboa Daughter expander circuit boards are designed specifically for BP100 systems and maintain full compatibility with all standard configurations.
How quickly can I get my system running again?
Most customers can complete the installation within 30 minutes using basic tools. If your not sure have an Technician assist you .
What if I'm not sure which board I need?
Contact our technical support team with your system model and symptoms. We'll help identify the exact circuit board required for your repair.
Get Your System Running Today
Don't let a faulty circuit board keep you out of the water. Order your genuine Balboa Daughter expander circuit board now and restore your BP100 to full function.
[Shop balboa expansion Bp100 Circuit Boards Now 1-855-248-0777]")