The air conditioner does not cool or heat at all (SFSU 55K Inverter)

Possible cause:

1. The intake or extraction of air into the external unit is clogged.
2. 3-minute protection feature.
3. Inappropriate temperature adjustment.

Solve:

1. First remove the obstacle, then start the operation of the unit.
2. You’ve been here for a while.
3. Adjust the temperature appropriately.