Whirlpool Compressor Hums but Does Not Start

Whirlpool undercounter ice maker makes a loud humming but no ice is produced

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 compressor start relay, open overload, locked rotor compressor, low line voltage

Safety: Unplug the unit. High voltage and compressor terminals can be hazardous.

Check line voltage: Verify 120 VAC at the outlet under load. Correct any supply issues.
Inspect start device: Remove the start relay and overload from the compressor. Look for burn marks or melted plastic. Replace with the correct Whirlpool start device if damaged.
Test compressor windings: Measure resistance between compressor terminals and compare to specs. If readings are abnormal, the compressor may be locked and require professional replacement.

Hard 4/5

Compressor Start Relay and Overload

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