LG Short Cycling / Control Sensitivity Issue

Wine cooler cycles on and off very frequently (short cycling), with small temperature swings.

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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

Temperature sensor located too close to evaporator, Oversensitive control algorithm, Poor airflow around sensor, Incorrect sensor type installed

How to Fix / Troubleshooting

Safety: Unplug the unit before accessing interior panels or sensors.

Steps:

  • 1. Verify ambient conditions: Ensure the unit is not installed in a location with rapid temperature changes (e.g., near an oven or in direct sunlight).
  • 2. Check sensor placement: Access the cabinet thermistor and confirm it is mounted in the factory location, not touching the evaporator or walls directly.
  • 3. Inspect airflow: Make sure shelves and bottles are not blocking airflow around the sensor.
  • 4. Replace sensor: If the sensor appears damaged or was replaced with a non-OEM part, install the correct LG thermistor.
  • 5. Control board: If short cycling persists with proper sensor and installation, the main control board may require replacement to correct control logic.
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Repair Difficulty

Medium 3/5

Required Part

Cabinet Thermistor
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