Igloo Temperature Control Instability

Freezer interior temperature fluctuates widely; sometimes food is soft, other times overly hard.

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

Faulty thermostat or sensor, Control board relay sticking, Freezer installed in unheated or very hot area, Frequent door openings

Safety: Unplug the freezer before accessing controls.

Environment and usage:

Move the freezer to a location within the recommended ambient temperature range.
Minimize door openings and avoid leaving the door open for long periods.

Check control components:

Test and replace a faulty thermostat or cabinet thermistor.
If the control board relay is sticking (compressor cycles erratically), replace the main control board.

Monitor: Use a separate thermometer to track temperature over several days after repairs.

Medium 3/5

Temperature Control Thermostat

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