Rheem
Failed Start Circuit / Locked Rotor
Pump motor hums but does not start spinning; may trip breaker after a few seconds.
Advertisements
Safety Warning
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.
Advertisements
Possible Causes
Bad start capacitor on Rheem motor, Stuck or seized motor bearings, Impeller jammed with debris, Low supply voltage causing insufficient starting torque
How to Fix / Troubleshooting
Safety First: Turn OFF and lock out power. Do not repeatedly try to start a humming motor.
- Check for free rotation: Remove the pump lid and basket. Try to spin the motor shaft from the rear or via the impeller (with pump disassembled). If it is stuck, clear debris or replace the motor.
- Inspect and test capacitor: Remove the capacitor cover on the Rheem motor, discharge the capacitor, and test with a capacitance meter. Replace if bulged, leaking, or out of spec.
- Verify voltage: Measure line voltage at the motor terminals while attempting a start. If voltage sags significantly, correct wiring or supply issues.
- Replace motor if needed: If bearings are noisy or shaft remains stiff after clearing obstructions, replace the Rheem motor assembly.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Rheem Motor Start Capacitor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements