Installation Guide
12 49-7771
Troubleshooting Tips... Before you call for service
TROUBLESHOOTING TIPS
Save time and money! Review the charts on the following pages first and you may not need to call for service.
Problem Possible Causes What To Do
Air conditioner does 
not start
The air conditioner is 
unplugged.
•Make sure the air conditioner plug is pushed completely into 
the outlet.
The fuse is blown/circuit 
breaker is tripped.
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or reset the breaker.
Power failure. •The unit will automatically re-start in the settings last used after 
the power is restored.
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prevent tripping of the compressor overload. For this reason, the 
unit may not start normal cooling for 3 minutes after it is turned 
back on.
The current interrupter device 
is tripped.
•Press the RESET button located on the power cord plug.
•If the RESET button will not stay engaged, discontinue use of 
the air conditioner and contact a qualified service technician.
Air conditioner does 
not cool as it should
Airflow is restricted. •Make sure there are no curtains, blinds or furniture blocking the 
front of the air conditioner.
The temp control may not be 
set correctly.
•On models with touch pads: In the Cool mode, press the 
DecreaseźSDG
•On models with control knobs, turn the temperature knob to a 
higher number.
The air filter is dirty. •Clean the filter at least every 30 days. See the Care and 
Cleaning section.
The room may have been hot. •When the air conditioner is first turned on, you need to allow 
time for the room to cool down.
Cold air is escaping. •Check for open furnace registers and cold air returns.
Cooling coils have iced up. •See “Air conditioner freezing up” below.
Air conditioner 
freezing up
Ice blocks the air flow and 
stops the air conditioner from 
cooling the room.
•On models with control knobs, set the mode control at High 
Fan or High Cool with the Temp at 1 or 2.
•On models with touch pads, set the controls at High Fan or 
High Cool and set the thermostat to a higher temperature.
The remote control is 
not working
The batteries are inserted 
incorrectly.
•Check the position of the batteries. They should be inserted in 
the opposite (+) and (–) direction.
The batteries may be dead. •Replace the batteries.
Water drips outside Hot, humid weather.  •This is normal.
Water drips indoors The air conditioner is not tilted 
to the outside.
•For proper water disposal, make sure the air conditioner slants 
slightly from the case front to the rear.
Water collects in base 
pan
Moisture removed from air and 
drains into base pan.
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normal for a longer period in very humid areas.
Ŷ You may hear a pinging noise caused by water being 
picked up and thrown against the condenser on rainy 
days or when the humidity is high. This design feature 
helps remove moisture and improve efficiency.
Ŷ You may hear the thermostat click when the 
compressor cycles on and off.
Ŷ Water will collect in the base pan during high humidity 
or on rainy days. The water may overflow and drip 
from the outdoor side of the unit.
Ŷ The fan may run even when the compressor does not.
Normal Operating Sounds










