Display shows LO and the temperature reading appears abnormally low or flashing.

Safety first: Unplug the refrigerator before accessing sensors or boards.

Steps:

• Verify actual temperature: Place an appliance thermometer in the compartment to confirm if the temperature is truly too low or if the reading is erroneous.
• Check sensor placement: Ensure thermistors are properly mounted and not in direct contact with the evaporator or air outlets, which can cause false low readings.
• Inspect and test thermistors: Follow the thermistor testing steps (E1/E2). Replace any sensor that reads out of range.
• Control reset: Unplug for 5 minutes, then restore power. If LO persists with correct temperatures and good sensors, the control board may be faulty.