Upper lamp blinks 2 times, lower lamp lights on — Refrigerant sensor issue

What does Upper lamp blinks 2 times, lower lamp lights on mean?

This symptom indicates a problem with the refrigerant sensor on the indoor unit. It might be disconnected or have a broken wire. The fan may operate, but the unit cannot be controlled by the remote.

• The refrigerant sensor is not properly connected.
• There is a broken wire in the refrigerant sensor connection.
• The refrigerant sensor itself is faulty.

Click steps to track your progress.

1. 1

   Ensure the connector for the refrigerant sensor is securely plugged in.

2. 2

   Inspect the wiring for any visible damage or breaks.

3. 3

   If the connection is secure and wiring is intact, the refrigerant sensor may need replacement.