One board to replace the whole BP501 family: the HydroQuip BP501U universal kit (part 59375, built by Balboa Water Group / HydroQuip) replaces the BP501G1, G2, and G3 boards — including original board numbers 56488, 56944, 56585, 56961, 56483, and 56965. Circ pump supported, and it’s compatible with all Balboa TP topside controls.
The kit includes a wiring diagram and a circuit-board replacement guidelines sheet for a successful installation — and we back that up with free phone support from a real spa technician on installation day.
Compatible Topside Controls
All Balboa TP-series panels (TP200, TP400, TP540, TP600, TP700) and SpaTouch touchscreens.
Free Phone Support on Installation Day
We’ve been repairing hot tubs since 2009, and every board purchase includes free phone support from our spa technicians during your installation. When you receive your projected delivery date, call or text us through our Contact Us page and we’ll set up a support window during business hours that fits your installation plans.
The genuine boards match one system each: BP501G1 (standard — no circ pump combined with a 2-speed pump 1), BP501G2 (requires a circ pump), and BP501G3 (no circ pump). This Universal kit replaces any of them — one board, circ pump supported, with setup covered in the included guidelines sheet. If you want the simplest answer, send us a photo of your ID label and we’ll point you to the right one.
The BP501U (59375) replaces the BP501G1–G3 series boards, including part numbers 56488, 56944, 56585, 56961, 56483, and 56965. If the failed board inside your spa pack carries any of these numbers, this kit is a direct replacement.
Yes — it’s the Balboa Water Group / HydroQuip universal replacement platform for the BP501 family. HydroQuip has built spa controls for over 40 years; this is the factory-supported retrofit path, not a knockoff.
Yes — the BP501U is compatible with all Balboa TP topside controls, and SpaTouch panels pair with BP-series systems as well. If your panel is something else, send us a photo and we’ll confirm before you order.
Circuit boards are non-returnable industry-wide — once a board ships, it can’t be resold as new, so no reputable parts dealer accepts board returns. That’s exactly why we verify BEFORE you buy. Send us a photo of your spa pack’s ID label through our Contact Us page and we’ll confirm this is the correct board for your system.
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