RUN light blinks slowly (1.5 sec ON, 0.5 sec OFF) during heating — Unit warming up or defrosting

What does RUN light blinks slowly (1.5 sec ON, 0.5 sec OFF) mean?

During heating operation, the unit temporarily stops blowing air or blows non-warm air, and the RUN light blinks with this pattern. This is normal during the 'HOT KEEP' program to warm up the indoor heat exchanger or during automatic defrosting.

• Indoor heat exchanger warming up (HOT KEEP program).
• Automatic defrosting due to low outdoor temperature and high humidity.

Click steps to track your progress.

1. 1

   Wait for 2 to 5 minutes for the indoor heat exchanger to warm up.

2. 2

   Allow the unit to complete its automatic defrosting cycle if outdoor conditions are cold and humid.

3. 3

   Observe if water or steam escapes from the outdoor unit during defrosting, which is a normal part of the process.