Heating is insufficient (no air blown) — Heat not distributed

What does Heating is insufficient (no air blown) mean?

The unit is operating, but warm air is not being blown out. This might be during the initial warm-up or defrost cycle.

• Unit is warming up for heating
• Outdoor unit is in defrost mode

Click steps to track your progress.

1. 1

   Wait for 1 to 4 minutes for the unit to warm up.

2. 2

   If you hear a flowing sound, wait 4 to 12 minutes for the defrost operation to complete.

3. 3

   Ensure the air filters are clean.

4. 4

   Check for obstacles blocking the unit's air inlet or outlet.