Harris Capacitor Degradation / Voltage Imbalance

Pump motor runs but makes a low-frequency humming or buzzing and seems to lack power

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

Weak run capacitor, Low supply voltage, Internal winding damage

Safety first: Turn off power and discharge capacitors before handling.

Measure supply voltage: Confirm voltage at the pump terminals is within ±10% of the Harris motor rating.
Test run capacitor: Remove and test the run capacitor with a capacitance meter. Replace if out of tolerance.
Listen for winding noise: Unusual buzzing from inside the motor may indicate winding issues, requiring motor replacement.

If capacitor and voltage are good but performance is poor, replace the motor assembly.

Medium 3/5

Harris motor run capacitor

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