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  • 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

    Balboa

    $102.46
    (No reviews yet) Write a Review
    SKU:
    33-53544-K
    UPC:
    33-53544-K
    Availability:
    Ships from U.S
    Width:
    14.00 (in)
    Height:
    10.00 (in)
    Depth:
    8.00 (in)
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    Product Description

    33-53544-k.png

     

    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]

     

     

    Other Details

    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 Electronic and electrical items should be installed by competent personnel . Warranty on these products when offered are scrutinized by the manufacturer and only approved by the manufacturer and deemed not to have been installed . As an international e-retailer and distributor, we work with manufacturers around the world. Please note that cross-border shipments may incur additional fees and tariffs imposed by your local government, which will be the responsibility of the package recipient

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