ELECTRICALSHOCKHAZARD.
Failureto follow this warning could result in
personal injury, death and/or property damage.
Use extreme care during all of the following checks
and procedures.
Make sure electric power is turned OFF as
instructed in appropriate steps.
the unit is no longer level, you should correct the condition.
Relevel it promptly to assure condensate drainage out of
the unit. If you notice that water or ice collects beneath the
unit, arrange for it to be drained away from the unit.
BEFORE YOU CALL FOR SERVICE, CHECK
FOR THESE EASILY SOLVED PROBLEMS
Check the indoor and outdoor disconnect switches. Verify
that circuit breakers are ON.
• DISCONNECTALL ELECTRICAL POWER TO THEAIR
CONDITIONER BEFORE PERFORMING SERVICE OR
MAINTENANCE. DO NOT REMOVEACCESS PANELS.
For a packaged air conditioner unit, disconnect power to
the unit and any supplemental electric heaters.
NOTE: THERE MAY BE MORETHAN ONE ELECTRICAL
DISCONNECT SWITCH.
• ALTHOUGH SPECIAL CARE HAS BEEN TAKEN TO
MINIMIZE SHARP EDGES IN THE CONSTRUCTION
OF YOUR UNIT, BE EXTREMELY CAREFUL WHEN
HANDLING PARTS. DO NOT REACH INTO THE UNIT.
Check the Air Filter - A dirty air filter will cause excessive
strain on the compressor and blower motor. This can cause
the components to overheat and automatically shut down.
In the extreme, the components will fail and need to be
replaced. To avoid inefficient or failed operation of your
unit, CHECK THE FILTER(S) EVERY 3 TO 4 WEEKS.
Replace filter(s) when necessary, or clean the filter(s) ifyou
have the reusable type.
Disposable filters should be replaced by similar, new filters
of the same dimensions.
Reusable, permanent filters should be washed in asolution
of cold water and mild detergent, then rinsed and
thoroughly dried. THE FILTER MUST BE COMPLETELY
DRY BEFORE BEING REINSTALLED. Toavoid prolonged
shutdown of your unit while a filter is drying, you should
have an extra filter on hand. This would allow you to rotate
between the two with minimal downtime for your comfort
system. Extra filters may be purchased from your dealer.
The filter(s) and filter rack for a packaged system are
supplied and installed bythe contractor or dealer. Typically,
the filter(s) and rack are located in the return-air duct at the
outdoor unit or behind the return-air grille(s). Have your
dealer show you the location of your filter(s) and the
procedures for removal and replacement.
If you have any questions about the removal and!or
cleaning ofyour filter(s), contact your dealer for assistance.
If grass clippings, leaves, shrubbery, and debris are kept
away from the unit, minimal care should be sufficient to
keep the system functioning properly. However, if the
outdoor coil becomes dirty, use a brush or vacuum cleaner
and soft brush attachment to clean the exterior surface. If
dirt is deep in the coil, contact your dealer for service. The
outdoor fan motor may have to be disconnected and the
top panel removed to gain access to the coil for thorough
cleaning. Do not attempt this yourself.
Unit Support - Your packaged unit should be maintained
at a level position. If its support should shift or settle so that
Check for sufficient airflow. Check the air filter(s) for any
accumulations of dirt. Check for blocked return-air or
supply-air grilles. Be sure grilles are open and
unobstructed.
Check the settings on your indoor thermostat. If you desire
cooling, see that the temperature control selector is set
below room temperature and the SYSTEM switch is on the
COOL or AUTO position. Ifyou require warmth, be sure the
temperature control selector is set above room
temperature and the SYSTEM switch is at HEAT or AUTO.
The FAN switch should be set at ON for continuous blower
operation or AUTO if you wish the blower to function only
while the unit is operating.
If your comfort system still fails to operate, contact your
servicing dealer for troubleshooting and repairs. Specify
your apparent problem, and state the model and serial
numbers of your equipment. (You should have them
recorded on page 4 of this booklet.) With this information,
your dealer may be able to offer helpful suggestions over
the phone, or save valuable time through knowledgeable
preparation for the service call.
REGULAR DEALER MAINTENANCE
In addition to the routine maintenance that you perform,
your home comfort system should be inspected regularly
by a properly trained service technician. The inspection
(preferably each year, but at least every other year) should
include the following:
• Routine inspection of air filter(s). Replacement or
cleaning as required.
• Inspection and cleaning of the blower wheel, housing,
and motor.
• Inspection and, if required, cleaning of evaporator and
condenser coils.
• Inspection of the coil drain pan, plus the drain lines.
Service should include cleaning if required.
• A check of all electrical wiring and connections.
• A check for secure physical connections of individual
components within units.
• Operational check of the air conditioner system to
determine actual working condition. Necessary repair
and/or adjustment should be performed at this time.
