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• Check the thermostat to conrm that it is properly set.
• Wait 15 minutes. Some devices in the outdoor unit or
in programmable thermostats will prevent compressor
operation for awhile, and then reset automatically. Also,
some power companies will install devices which shut
o air conditioners for several minutes on hot days. If
you wait several minutes, the unit may begin operation
on its own.
• Check the electrical panel for tripped circuit breakers
or failed fuses. Reset the circuit breakers or replace fuses as necessary.
• Check the disconnect switch near the indoor furnace or blower to conrm that it is closed.
• Check for obstructions on the outdoor unit . Conrm that it has not been covered on the sides or the top. Remove any
obstruction that can be safely removed. If the unit is covered with dirt or debris, call a qualied servicer to clean it.
• Check for blockage of the indoor air inlets and outlets. Conrm that they are open and have not been blocked by
objects (rugs, curtains or furniture).
• Check the lter. If it is dirty, clean or replace it.
• Listen for any unusual noise(s), other than normal operating noise, that might be coming from the outdoor unit. If you
hear unusual noise(s) coming from the unit, call a qualied servicer.
AIR HANDLER
We strongly recommend a bi-annual maintenance checkup be performed before the heating and cooling seasons begin by a qualied servicer.
Never operate unit without a lter installed as dust and lint will build up on internal parts resulting in
loss of eciency, equipment damage and possible re.
An indoor air lter must be used with your comfort system. A properly maintained lter will keep the indoor coil of your comfort
system clean. A dirty coil could cause poor operation and/or severe equipment damage.
Your air lter or lters could be located in your furnace, in a blower unit, or in “lter grilles” in your ceiling or walls. The installer
of your air conditioner or heat pump can tell you where your lter(s) are, and how to clean or replace them.
Check your lter(s) at least once a month. When they are dirty, replace or clean as required. Disposable type lters should
be replaced. Reusable type lters may be cleaned.
You may want to ask your dealer about high eciency lters. High eciency lters are available in both electronic and
non-electronic types. These lters can do a better job of catching small airborne particles.
S
Indoor and outdoor fan motors are permanently lubricated
and do not require additional oiling.
ALUMINUM INDOOR COIL CLEANING
This unit is equipped with an aluminum tube evaporator coil.
The safest way to clean the evaporator coil is to simply ush
the coil with water. This cleaning practice remains as the
recommended cleaning method for both copper tube and aluminum tube residential evaporator coils.
It has been determined that many coil cleaners and drain pan tablets contain corrosive chemicals that can be harmful to
aluminum tube and n evaporator coils. Even a one-time application of these corrosive chemicals can cause premature
aluminum evaporator coil failure. Any cleaners that contain corrosive chemicals including, but not limited to, chlorine and
hydroxides, should not be used.
An alternate cleaning method is to use one of the products listed in TP-109* to clean the coils. The cleaners listed are the
only agents deemed safe and approved for use to clean round tube aluminum coils. TP-109 is also available on the web
site in Partner Link > Service Toolkit.
NOTE: Ensure coils are rinsed well after use of any chemical cleaners.
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