Display shows 'Lo', and the cooler does not respond to lower temperature settings.

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

Temperature sensor reading below expected range, Sensor shorted, Control board firmware limit reached, Ambient temperature too low.

Safety first: Unplug the cooler before accessing internal components.

Check ambient temperature: Ensure the cooler is not installed in a very cold environment (below the manufacturer's minimum specified temperature). Move it if necessary.
Verify setpoint range: Confirm that you are not attempting to set a temperature below the unit's design limit. Refer to the user manual for the allowed temperature ranges.
Inspect sensor: If 'Lo' persists, inspect the relevant compartment sensor for damage or moisture, as described in the E1/E2 procedures.
Replace sensor or board: A shorted sensor or faulty control board can cause 'Lo'. Replace the defective part with a NEEDONE-compatible component.

Medium 3/5

Compartment Temperature Sensor

Check Price on Amazon

We may earn a commission from links on this page.