Coast Spas Pump Start Capacitor Failure

Intermittent buzzing or humming from pump but impeller does not turn.

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

Failed start capacitor on Coast Spas jet pump motor, Seized pump shaft, Low supply voltage to pump

Safety first: Turn off power at the breaker before touching the pump or capacitor.

Spin test: With power off, try to rotate the pump shaft by hand. If it spins freely, the capacitor is a likely culprit.
Inspect capacitor: Locate the capacitor housing on the motor. Look for bulging or leaking.
Replace capacitor: Install a new capacitor with the same microfarad (µF) rating and voltage. Discharge the old capacitor safely before removal.
Retest pump: Restore power and verify that the pump starts promptly without humming.

Medium 3/5

Pump Start Capacitor

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