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Safety is key when servicing any spa or spa control panel. Remember, safety comes first for you. Please take all necessary precautions before attempting any repairs. Wiring checks are the first step to ensure safety and proper function before beginning service on a unit.


Do not remove and replace the circuit board unless you have tested all other components and proven that the circuit board is actually causing the problem.

The first thing is to do is to identify the sympton from the list below:

Spa PCB Associated Problems

What are the typical PCB output capabilities?
How to Remove a System Circuit Board?
Hot to determine your Balboa PCB type

What are the typical PCB output capabilities?

A typical circuit board has the following output capabilities:

•230 VAC System

• Two-speed pump 230 VAC, 50 Hz, 2 HP

• Single-speed pump 230 VAC, 50 Hz, 2 HP

• Blower 230 VAC, 50 Hz, 2 HP

• Heater 230 VAC, 50 Hz, 2-3 kW

• Light 12 V, 12 W, 50 Hz, I A or 120 V, 100 W


How to Remove a System Circuit Board?

• Shut OFF line power to the spa at the main circuit breaker panel. Do not attempt to service a spa without shutting off the power. Serious injury or damage may result.

• Disconnect all wires and slip-on connectors as necessary to remove the board.

Note. Labeling these wires may help speed up reinstallation. The wiring diagram should always be used to ensure proper wire placement.

• Remove all the screws which mount the board to the system enclosure.

• Remove the board from the plastic stand-offs by gently squeezing the locking flange on each stand-off with a pair of pliers. The board should now be free and can be removed from the system box

• Check all jumpers and dip switch positions on the new board. Make sure they are in the same position as the old board.

• Make sure the new board snaps in place on the plastic stand-offs. Use care to be sure the connectors on the right side of the board clear the enclosure openings as the board is installed.

• Install all screws which mount the board to the system enclosure.

• Reconnect all wires and slip-on connectors. We recommend sliconing the main wires into the terminal block as they can often work loose through pump vibration eventually causing a short.

• Restore power to the spa at the main breaker.

• Test to make sure all functions work correctly.