MAAX Spas Stalled Pump / Failed Start Capacitor

Spa makes a loud humming noise but the pump does not start and jets do not move water.

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 MAAX pump, Seized pump shaft, Debris jammed in impeller, Low supply voltage

Warning: Do not let a humming motor run for more than a few seconds; it can overheat.

Turn off power: Immediately shut off the breaker.
Check for obstructions: Remove the pump wet end and inspect the impeller for debris.
Test shaft movement: Try to rotate the motor shaft by hand. If it is stiff, the motor may be seized and require replacement.
Inspect capacitor: Replace a bulging or leaking start capacitor with a MAAX-specified part.
Retest: Reassemble and briefly test. If the pump still only hums, replace the pump motor assembly.

Medium 3/5

Pump Start Capacitor

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