Upper OPERATION INDICATOR lamp blinks 2 times (in recall mode) — Indoor coil thermistor error

What does Upper lamp 2-time blink (recall) mean?

In failure mode recall function, if the upper OPERATION INDICATOR lamp blinks two times with a 2.5-second OFF interval, it indicates a short or open circuit in the indoor coil thermistor. This error is detected every 8 seconds during operation.

• Indoor coil thermistor (main or sub) short circuit
• Indoor coil thermistor (main or sub) open circuit

Click steps to track your progress.

1. 1

   Release the failure mode recall function by cycling power to the unit or pressing the remote controller's RESET button.

2. 2

   Ensure nothing is blocking airflow over the indoor coil.

3. 3

   Contact a service technician to check the indoor coil thermistors and their connections.