Hot Spring Pump Stuck On / Relay Failure

Spa cabinet or equipment bay is warm even when spa is not heating; pump runs more than expected.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Stuck pump relay on IQ control board, Misconfigured circulation schedule, Shorted control wiring, Topside control logic fault

Safety first: Turn off power if components feel excessively hot.

Check programming: Verify filtration and circulation settings on the control panel to ensure pumps are not scheduled to run continuously.
Observe pump behavior: If a jet pump runs even when the panel indicates it should be off, the relay on the IQ control board may be stuck.
Power reset: Turn power off for several minutes, then back on. If the pump immediately starts again without command, the board likely needs replacement.

Hard 4/5

IQ Control Board

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