Installation Guide
TROUBLESHOOTING TIPS
Troubleshooting 
Tips
Before calling for service, review this list. It may save your time and expense. This list includes common 
occurrences that are not the result of defective workman-ship or materials in this appliance.
Air conditioner
does not start
Wall plug disconnected. Push plug rmly into wall outlet.
House fuse blown or circuit breaker tripped. Replace fuse with time delay type or reset 
circuit breaker.
Plug Current Device tripped. Press the RESET button.
Power is OFF. Turn power ON.
Air from unit does 
not feel cold 
enough
Room temperature below 62°F(17°C). Cooling may not occur until room temperature rises 
above 62°F(17°C).
Temperature sensor behind air lter element touching cold coil. 
Set to a Lower temperature.
Compressor stopped when changing modes. Wait for 3 minutes after set to the COOL mode.
Air conditioner 
cooling, but room 
is too warm- ice 
forming on cooling 
coil behind 
decorative front.
Outdoor temperature below 64°F(18°C). To defrost the coil, set FAN ONLY mode.
Air lter may be dirty. Clean lter. Refer to Care and Cleaning section. 
Thermostat set too cold for night-time cooling. To defrost the coil, set to FAN ONLY mode. 
Then, set temperature to a Higher setting.
Problem Solution
Air conditioner 
cooling, but room 
is too warm- NO 
ice forming on
cooling coil behind 
decorative front.
Air conditioner 
turns on and o 
rapidly
Noise when unit is 
cooling
Air lter may be dirty. .Clean lter. Refer to Care and Cleaning section.
Temperature is set too High, set temperature to a Lower setting.
Air directional louvers positioned improperly. Position louvers for better air distribution.
Front of units is blocked by drapes, blinds, furniture, etc. - restricts air distribution. Clear 
blockage in front of unit.
Open doors, windows, or register may allow cold air to escape. Close any doors, winows, 
or registers.
The room may be too warm. Allow additional time to remove “stored heat” from walls, 
ceiling, oor and furniture.
Dirty air lter- air restricted. Clean air lter.
Outside temperature extremely hot. Set FAN speed to a Higher setting to bring air past 
cooling coils more frequently.
Air movement sound. This is normal . If too loud, set to a slower FAN setting.
Window vibration - poor installation. Refer to installation instructions or check with installer.
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