How to Fix / Troubleshooting

Safety: Unplug the unit before accessing sensors or the control board.

Steps:

Adjust setpoint: Raise the temperature setting and monitor for 12–24 hours. If no change, continue.
Inspect thermistor: Locate the cabinet thermistor and ensure it is not touching the evaporator coil or a very cold surface. Reposition if necessary.
Test thermistor: Measure resistance at a known temperature and compare to specifications. Replace if readings are incorrect.
Control board: If the compressor runs nearly continuously despite correct sensor readings, the control relay may be stuck. Replace the main control board.

Note: Persistent overcooling can waste energy and damage some stored items; address promptly.

Freezer interior is too cold; food is excessively hard and frost builds up quickly

Possible Causes