What does error code Pump may be stuck on mean on a Balboa hot tub?

Pump stuck on / hot fault. The water may be overheated because a pump may be stuck on.

Can I fix Balboa code Pump may be stuck on myself?

Start with these safe checks: Power down the spa at its breaker and don't enter the water. Balboa says contact service.

When should I call a technician for code Pump may be stuck on?

Balboa says contact service. Water and electricity together can kill. Turn the equipment off at the breaker before you open anything, never touch equipment while standing in water, and stay out of the pool or spa if you feel tingling or suspect an electrical problem. Leave wiring, boards and GFCI faults to a licensed electrician or service tech.

Balboa Hot Tub Error Code Pump may be stuck on / M034 / M035: Pump…

What Pump may be stuck on means

The water may be overheated because a pump may be stuck on.

Also shown as: M034, M035, Hot fault, depending on the model.

Likely causes

Stuck relay in the control pack

Safe first checks

Power down the spa at its breaker and don't enter the water.

When to stop

Balboa says contact service.

Checked against: Balboa TP500S / TP600 system user guide (42339 rev A1): message codes; Balboa Spa Touch 3 user guide: messages. Codes can differ by model and year, so confirm with your owner's manual.