The operation of a ceiling mounted air conditioner that uses multiple units at the same time must be matched
to either cooling or heating.
The inability to select either cooling or heating is a symptom that occurs because all air conditioners in
use are not matched to either cooling or heating.
Rest assured, it is not a product defect, so it will operate normally if you do as follows.
Try this
Press the Start/Stop button on the remote control to turn off all indoor units of the air conditioner.
Wait approximately 5 minutes and then set either cooling or heating operation on all indoor units in order
to ensure normal operation.
This guide was created for all models, so the images or content may be different from your product.
