The display shows "Lo" for temperature, and the compressor may not run; the interior may be too cold or normal.

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

Cabinet sensor reading below minimum range, sensor shorted, control board misinterpreting the sensor, actual freezing conditions inside the cabinet.

Safety: Unplug the unit before sensor testing.

Steps:

Check actual temperature: Place an accurate thermometer inside the cooler to verify the real temperature. If it is normal but the display shows "Lo", suspect a sensor or board issue.
Test cabinet sensor: Measure resistance at room temperature. A very low resistance indicates a shorted sensor. Replace with a correct Fagor NTC sensor.
Inspect wiring: Look for damaged insulation or wires touching each other or metal surfaces.
Control board: If the sensor and wiring are good, replace the main control board.

Medium 3/5

Cabinet NTC Temperature Sensor

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