Freezer runs continuously and temperature is too cold (over-freezing), even at higher setpoint.

Safety first: Disconnect mains power before accessing controls or sensors.

Steps:

• Verify set temperature: Ensure the setpoint is not at the coldest setting or in super-freeze mode.
• Check freezer sensor: Test the freezer NTC sensor resistance and compare to expected values. Replace if out of range.
• Inspect wiring: Look for shorted or damaged sensor wires that could cause the control to read a higher temperature than actual.
• Control board: If the sensor is correct but the compressor never cycles off, the compressor relay on the main PCB may be stuck closed. Replace the main control PCB.