Upper lamp blinks 3 times, lower lamp lights on — Refrigerant leak detected

What does Upper lamp blinks 3 times, lower lamp lights on mean?

This indicates a potential refrigerant leak detected by the sensor. The unit may emit a buzzer sound, and the fan will operate for an extended period. It cannot be controlled by the remote.

• Refrigerant is leaking from the indoor unit piping or heat exchanger.
• Certain substances like sprays (LP gas, propane, butane), aerosols, alcohol, or charcoal are used near the indoor unit.

Click steps to track your progress.

1. 1

   Press and hold the emergency operation button to silence the buzzer.

2. 2

   Open windows to ventilate the room.

3. 3

   After fan operation finishes (approx. 7 hours), turn off the main power breaker.

4. 4

   Inspect the indoor unit for the source of the refrigerant leak and repair it.

5. 5

   If the problem continues after repair, replace the refrigerant sensor.