Haier AC282AFEAA User Manual - Page 28

Trouble Shooting Before ask for services, please first check your unit against the following. Air conditioner won't start. Is power supply switch turned on? Is city power supply normal? Power supply switch is not set at ON. Power failure? Poor cooling or heating Is leakage current breaker activated? This is very dangerous, please disconnect power supply immediately and contact your dealer. Are operation control adjusted correctly as specified? Proper temp Is air filter too dirty? Are there any obstacles in inlet or outlet grill? Are horizontal louvers at up position (in heating mode)? Any doors or windows left open? Poor cooling Is there any direct sunlight If there are unexpected heat Too many people in the room? in the room? sources in the room? Cold air blows out (in heating mode) Is air conditioner in standby condition in heating mode? If your unit still can't work properly after above mentioned checks, or following problems occur, please stop it immediately and contact your dealer. Fuses or circuit breakers often blow out. Water comes out in cooling/dry operation. Operation is abnormal or sound is heard. 26