Toshiba Inconsistent Temperature Control

Freezer interior temperature fluctuates widely, causing partial thawing and refreezing of food.

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 temperature sensor, Main PCB control algorithm fault, Door frequently opened, Freezer installed near heat source

Safety: Unplug before sensor or PCB work.

Steps:

1. Usage pattern: Reduce door openings and avoid placing hot items directly inside.
2. Installation check: Ensure the freezer is not next to an oven, radiator, or in direct sunlight.
3. Sensor test: Test the cabinet and evaporator thermistors for correct resistance and replace any faulty sensors.
4. PCB replacement: If sensors are good and usage/installation are correct, the main control PCB may be mismanaging compressor and fan cycles and should be replaced.

Medium 3/5

Cabinet Thermistor Sensor

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