Replacement Balboa circuit board, VS501SZ model, Chip VS501SZRD2. OEM part number 54378-03.
SpaGuts P/N: 10-175-4378
Circuit Board Dimension (Approx): 11 inch x 5 inch
Circuits: Pump 1 dual speed, Blower/Pump 2 single speed, Ozone, Circ Pump
This is the replacement circuit board for the 54377-02 Balboa Control System VS501SZ.
This circuit board is also a replacement option for the following circuit board part numbers: 3-60-0092, 52368, KEYS100, Chip VS501R1B, 59-138-1682, Chip VS501SZR1A, 55944 FV501SZ System, 55945 FV501SZ Board
This item comes with a 1-year limited warranty.
SPECIAL ORDER NOTES: THIS ITEM IS A SPECIAL ORDER AND HAS AN ESTIMATED 2-10 BUSINESS DAYS LEAD TIME BEFORE SHIPPING. SPECIAL ORDERS ARE NON-RETURNABLE AND CANNOT BE CANCELED ONCE THE ORDER IS PLACED.
When selecting your spa circuit board, it’s critical that you go by part numbers and not appearances or the model number. The part number on a spa circuit board can be found on a white sticker located directly on the circuit board (The ID label may be located on the board relays or on the transformer). Buy based on this part number. Model numbers of a circuit board may provide many different options and/or lead to ordering the wrong part. Do NOT purchase a hot tub circuit board just because it looks the same as the one you’re replacing and have a similar model number. Spa circuit boards can look identical, but be programmed differently to work with different spa controllers and topside panels. NOTE that most circuit boards need to be configured in the field to work with the existing spa components and power ratings, and a licensed professional is recommended for installation and configurations. If this circuit board is being used as an optional replacement for the original circuit board, please follow the new circuit board wiring diagram for proper installation and configuration setup.
CIRCUIT BOARD PURCHASE AGREEMENT: Manufacturer's Warranty DOES NOT cover burnt terminal blocks or connections, burnt or blown fuses, burnt traces or terminals for circuit board purchases. These are normally caused by field installation errors, loose connections and/or over current draw from external electrical wiring and/or components. This warranty agreement applies to ALL orders made over the phone, online orders, and through purchase orders.