Brandt Overcooling / Thermostat Stuck Closed

Freezer interior too cold; items excessively hard or ice crystals everywhere even at low setting

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.

Possible Causes

Thermostat contacts welded closed, Shorted temperature sensor, Control board not responding to sensor input, Incorrectly installed sensor not sensing cabinet air

How to Fix / Troubleshooting

Safety first: Unplug the freezer before working on controls.

Steps:

Adjust setting: Turn the thermostat or electronic setting to a warmer position and monitor for several hours.
Mechanical thermostat: If the compressor never stops regardless of knob position, replace the thermostat.
Electronic control: Test the cabinet NTC sensor. If resistance does not change with temperature, replace the sensor.
If sensor is good: Replace the main control board, as it may not be interpreting the sensor correctly.

Repair Difficulty

Medium 3/5

Required Part

Thermostat / Cabinet Temperature Sensor

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