Display shows Lo or LL and temperature cannot be set lower; unit may be in low‑temperature lockout.

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 allowed range, Sensor shorted, Control board firmware lockout, Incorrect calibration

Safety: Unplug before testing sensors.

Verify actual temperature: Place an accurate thermometer inside to confirm if the cabinet is truly very cold or if the reading is erroneous.
Check sensor: Test the cabinet NTC sensor resistance. A very low resistance may indicate a short. Replace the cabinet temperature sensor if out of range.
Power cycle: Unplug for 5–10 minutes to clear any temporary lockout.
Control board: If the sensor is correct but Lo remains, the main control board may be mis‑calibrated and require replacement.

Medium 3/5

Cabinet Temperature Sensor (NTC)

Check Price on Amazon

We may earn a commission from links on this page.