Balboa Water Group
Balboa Water Group Expander Board | 53426
Balboa Water Group Expander Board | 53426
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Manuals, spec sheets and warranty for Balboa Water Group
Balboa expander board for 2-speed pump control, VS511 series
A Balboa expander board with an auxiliary relay output for adding a 2-speed pump to a VS511 or VS511SZ control.
Add a second pump speed to your spa with the Balboa 53426 expander board, listed for VS511 and VS511SZ controls. It plugs into the control system as an add-on board. Questions? Call 631-678-6506.
How to choose and fit the Expander Board, 2-Speed Pump
Find your control board model number and confirm it is a VS511 or VS511SZ system.
Check that you need an expander board for a 2-speed pump, then compare part number 53426 to your old board.
Plan on a qualified spa technician, since this board connects to the control system wiring. Call 631-678-6506 for a match check.
Works on
Expander Board, 2-Speed Pump questions and answers
What is the Balboa 53426?
It is an expander board with an auxiliary relay output used to run a 2-speed pump on listed Balboa controls.
Which controls is it listed for?
Retail listings show it for VS511 and VS511SZ systems. Match your control model before you order.
Do I need a pro to install it?
Control boards involve spa wiring, so turn the power off at the breaker and use a qualified spa technician.
Is it in stock?
Stock changes often. If it shows as unavailable, call 631-678-6506 and we will check.
Will it fit my spa?
Confirm the part number and size against your current part, or call 631-678-6506 and we will help you check before you order.