Whirlpool Premature Harvest

Whirlpool undercounter ice maker harvests ice too early, cubes are thin and break apart

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

Misreading evaporator thermistor, faulty harvest thermostat, control board miscalibration, poor evaporator contact with sensor

Safety: Disconnect power before accessing sensors.

Verify sensor placement: Ensure the evaporator thermistor or thermostat is firmly attached to the correct location on the evaporator plate.
Test sensor: Measure resistance at known temperatures and compare to Whirlpool’s chart. Replace if out of range.
Inspect wiring: Check for loose or corroded connections between the sensor and control board.
Control board: If sensors and wiring are good but harvest remains early, the control board may need replacement.

Medium 3/5

Harvest Thermistor

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