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BEFORE CALLING FOR SERVICE
Check the following list to be sure a service call is really necessary. A quick reference to this manual may
help you avoid an unneeded service call.
THE AIR CONDITIONER WILL NOT OPERATE
Check if...
Wall plug disconnected.
House fuse blown or circuit breaker tripped.
Power is OFF.
Unit was turned off and then on too quickly.
TEMP Control set warmer than room temperature.
AIR FROM UNIT DOES NOT FEEL COLD
Check if...
FAN SPEED set at LOW.
TEMP Control set too warm.
Temperature sensing tube touching evaporator coil,
located behind front grille.
Then...
Push plug firmly into wall outlet.
Replace fuse with time delay type or reset circuit breaker.
Push the power button.
Set unit off and wait 3 minutes before restarting.
Set TEMP Control to cooler.
ENOUGH.
Then...
Push MODE button to set at COOL HI.
Set TEMP Control to cooler setting.
Remove Front Grille, Then straighten tube away from
evaporator coil.
THE AIR CONDITIONER COOLING, BUT ROOM IS TOO WARM-ICE FORMING ON COOLING COIL BEHIND FRONT GRILLE.
Check if... Then...
Outdoor temperature below 70°F (21°C). To defrost the coil, set the MODE to FAN ONLY-HI.
Air filter may be dirty. C lean air filter. Refer to Maintenance section of owner's manual.
TEMP Control set too cold for night-time cooling. To defrost the coil, set the MODE to FAN ONLY-HI.
THE AIR CONDITIONER COOLING , BUT ROOM IS TOO WARM.
Check if... Then...
Dirty airfitter- air restricted. Clean air filter. Refer to Maintenance section of owner's manual.
TEMP Control set too warm. Set TEMP Controlto cooler setting.
Front of unit isblocked by drapes, blinds, furniture, etc. Clear blockage in front of unit.
Air distribution is restricted.
Doors,windows, registers, etc. open. Cold air escapes. Close doors, windows, registers, etc.
Unit recently turned on in hot room. Allowadditionaltimetoremovestoredheatfromwalis,ceiling,floor,andfumiture.
THE AIR CONDITIONER TURNS ON AND OFF RAPIDLY.
Check if... Then...
I Outside temperature is extremely hot. I Set MODE on COOL- HI to bring air past cooling coils faster. I
NOISE WHEN UNIT IS COOLING .
Check if... Then...
L Sound of fan hittingwater4rom themoisture removalsystem.J This is normal when humidity is high. Closedoors, windows, and registers_
/ Window vibration - poor installation. / Refer to installation instructions or check with installer. /
WATER DRIPPING INSIDE ROOM WHEN UNIT IS COOLING.
Check if... Then...
The air conditioner is improperly installed. Tiltinstallationairconditionerinstructionsslightlyor tocheckthe outsidewith installer,to allow water drainage. Refer to
WATER DRIPPING OUTSIDE WHEN UNIT IS COOLING.
Check if... Then...
The unit is removing large quantities of moisture This is normaI during excessively humid days.
from humid room.
-13-
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