Haier HPAC9M User Manual page 10

Jf air conditioner does not operate:
Check if unit is plugged in_ The plug may have come Joose_
Check if the electrical wall receptacle is of proper vdtage_
Check if the circuit breaker needs to be reset or if the fuse needs to be replaced_
Check if the unit is in "Off" mode_
The fan control may be in "Off" position.
Air conditioner working but room not cooling:
Room may have appliances that produce heat. Use an exhaust fan to remove excess heat.
Check exhaust hose for proper installations
Redirect the airflow. Removeany obstacles.
All doors and windows need to be closed so cool air does
not escape the room_
Air filter may be blocked or may need deaning_
Unit BTU may be too low for the required cooling area_
On extreme hot & humid days air conditioners may take a little longer to cook
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