OWNER,S MANUAL - 24
CARE AND MAINTENANCE
Frost Prevention of Indoor Unit
When the unit operates (on cooling) at a low ambient temperature, frost may appear on the indoor coil. When the indoor coil temperature is below 0° c, the microcomputer makes the compressor stop to protect the unit from frost.
Normal Operation
Any of the following can occur during normal operation:
•A sound like a “GURGLE” can sometimes be heard during operation or when the unit stops.
-It is the sound of the refrigerant flowing through the unit.
•Bad smells can come from the unit.
-Smells such as smoke or cosmetics can accumulate while room air circulates through the unit.
-Cleaning the filters will reduce this problem.
•The outdoor fan does not rotate during heating operation.
-The unit is in defrost mode.
•UNIT ON lamp on the indoor unit display flashes and no air comes from the unit.
-It indicates malfunction of the unit and the compressor will stop operating.
•A “creaking” noise can sometimes be heard during operation or when the unit turns on.
-This is the sound of plastic expanding due to an abrupt temperature change.