Operation indicator lamp blinking — Air conditioner abnormality detected

What does Operation indicator lamp blinking mean?

The operation indicator lamp on the indoor unit is blinking on and off. This indicates that the air conditioner is experiencing an abnormal condition.

• Power supply voltage issue
• Incorrect indoor/outdoor wiring
• Faulty electronic control P.C. board
• Loose connectors or terminals

Click steps to track your progress.

1. 1

   Check the power supply voltage.

2. 2

   Verify the indoor and outdoor connecting wires are correctly installed.

3. 3

   Ensure all connectors and terminals are securely connected.

4. 4

   Note the blinking pattern of the operation indicator lamp for further diagnosis.

5. 5

   Turn off the unit with the remote, close the vane, then turn off the breaker or unplug the unit before further checks.

6. 6

   If the issue persists, consult a qualified technician.