TROUBLE SHOOTING
The following are normal and should not be treated as defects.
!Hissing sound, like flow of water from the unit. This is the sound of the
refrigerant at the expansion device, which can be heard from time to time
depending on the indoor and outdoor ambient conditions.
!The unit does not cool for a few minutes after it restarts. This is because a time
delay mechanism built into the unit prevents the compressor from starting for a
few minutes. This is to protect the compressor from breakdown.
!Smell from the supply air: The coil and filters absorb the smell from the
environment and the supply air may also have the same smell. This usually
happens in places where heavy cigarette smoke exists in the air.
BEFORE CALLING FOR SERVICE, PLEASE CHECK THE FOLLOWING:
Air conditioner does not operate:
!Check the thermostat setting to ensure that it is not set above the room
temperature.
!Check the circuit breaker.
!Check the power supply to ensure that it is not interrupted.
Cooling is insufficient:
!Check and clean the filters if necessary.
!Check that the thermostat setting is not above room temperature for cooling.
!Check that all windows and doors are closed.
!Check if there are sources of heat present in the room, like stove burners.
!Check that the fan speed is set to the HIGH setting
!If the system still does not operate or does not provide sufficient cooling, call for
a professional serviceman.