Upper lamp blinking 14+ times — Other abnormality detected

What does Upper lamp blinks 14-time blink or more 2.5-second OFF mean?

An abnormality other than the listed codes is detected, potentially related to indoor or ambient temperature thermistors. Do not restart operation without repair.

• Abnormality in indoor thermistors
• Abnormality in ambient temperature thermistor
• Air mixed in refrigerant circuit

Click steps to track your progress.

1. 1

   Check for leakage points on valves and flare connections.

2. 2

   Check for blockage points in the refrigerant circuit.

3. 3

   Use the failure mode recall function for the outdoor unit to confirm the abnormality.

4. 4

   Refer to thermistor characteristics in the service manual.