H1 or similar code, display shows unusually high temperature reading not matching actual interior temperature.

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

Shorted NTC sensor, Sensor wiring short to ground, Control board misreading sensor, Sensor located incorrectly near heater or light

Safety first: Unplug the refrigerator before accessing sensors.

Step-by-step checks:

1. Compare with thermometer: Place a separate fridge thermometer inside to verify actual temperature.
2. Inspect sensor location: Ensure the sensor is not touching a light housing or defrost heater area.
3. Test sensor resistance: Disconnect and measure resistance; a very low value (near 0 Ω) indicates a shorted sensor that must be replaced.

When to call a technician: If sensor is good but H1 persists, the PCB may have a fault.

Medium 3/5

Compartment NTC Temperature Sensor

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