Whirlpool Short Cycling / Improper Thermostat Operation

Unit turns on and off frequently (short cycling), running only a few minutes at a time.

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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.

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Possible Causes

Thermostat sensor too close to cold air discharge, oversized unit for room, dirty filter causing coil freeze, low refrigerant causing freeze-up, faulty control board

How to Fix / Troubleshooting

Safety: Unplug the unit before repositioning sensors or opening covers.

Steps:

  • Filter and coil: Clean the air filter and check the evaporator coil for ice. If iced, let it thaw completely and correct airflow issues.
  • Sensor placement: Locate the room temperature sensor. Ensure it is positioned in the return air stream, not directly in the cold discharge air.
  • Room conditions: Avoid setting the temperature extremely low; set a moderate temperature and observe operation.

If short cycling continues with clean filters and proper sensor placement, a refrigerant or control issue may be present and should be evaluated by a technician.

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Repair Difficulty

Medium 3/5

Required Part

Room Temperature Sensor (Thermistor)
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