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ROOM AIR CONDITIONER
TROUBLESHOOTING GUIDE
Table of contents
General Performance Problem
Doesn't Work
Turns On/Off Repeatedly
Never Shuts Off
Motor Runs/No Air Is Blowing
Cools But Doesn't Dehumidify
Remote Control Isn't Working
Consult your owner's manual for more product details. You can download your owner's manual here.
2
2
2
3
3
4
4
Cooling Problem
Cools Poorly
Icing on the Coils
Water Problem
Water Is Dripping
5
5
6
6
6
Noise Problem
Too Noisy
Odor Problem
Bad Smell
7
7
7
7
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GENERAL PERFORMANCE PROBLEM
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and accessories.
DOESN'T WORK
Is the unit turned off?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Is the power supply
cord unplugged?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Is the household fuse
blown or circuit breaker
Press the power button to turn on the unit.
Firmly plug the cord into a grounded 3-prong outlet.
Replace the fuse or reset the circuit breaker.
tripped?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Was there a power
outage or did you turn
the unit off?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Has the reset button on
the power cord or surge
Wait about 3 to 5 minutes and then restart, to prevent the
temperature overload protector from temporarily shutting off the
compressor.
Press the reset button. If it pops back up, turn off the unit and call
for service.
protector popped up?
Does this solve your problem? Yes! Problem solved.
No. I need Service.
Click here to book an appointment
for service.
.
.
TURNS ON/OFF
REPEATEDLY
Is air conditioner turning
on and off even though
room temperature is
Clean the condenser coil to enable air to flow through it. For
instructions on cleaning the coil, see your owner's manual.
You can download your owner's manual here.
warmer than the
temperature you set?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Was there a power
outage or did you turn
Wait about 3 to 5 minutes and then restart, to prevent the temperature
overload protector from temporarily shutting off the compressor.
the unit off?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Did you move the
temperature control to a
warmer setting then
Turn off the unit. Wait about 3 to 5 minutes and then restart, to
prevent the temperature overload protector from temporarily shutting
off the compressor.
immediately back to a
cooler setting?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Is outside air
Set the fan speed to High to move more air across the coils.
temperature extremely
hot?
Does this solve your problem? Yes! Problem solved.
No. I need Service.
Click here to book an appointment
for service.
ROOM AIR CONDITIONER TROUBLESHOOTING GUIDE
2
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GENERAL PERFORMANCE PROBLEM
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>
and accessories.
NEVER SHUTS OFF
Is the outside
temperature extremely
The unit's cooling capacity might not be enough. Add another unit or
use a unit with greater capacity.
hot?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Are controls set as
recommended in the
Set the controls and then allow 10 minutes for the temperature to
stabilize. You can download your owner's manual here.
owner's manual?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Is there a heat source
(such as a lamp or
television) in the room,
near the air conditioner?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Is the room size larger
than the cooling
Move the unit away from the heat source or remove the heat source.
The thermostat senses heat and signals the air conditioner to continue
operating even though the temperature in the room is below
thermostat settings.
Add another unit or use a unit with greater capacity. You can
download your owner's manual here.
capacity specified in the
owner's manual?
Does this solve your problem? Yes! Problem solved.
No. I need Service.
Click here to book an appointment
for service.
.
.
MOTOR RUNS/NO AIR
IS BLOWING
Is no air blowing in
either cooling or fan
mode?
Remove power to the unit and then remove the grill and the sleeve
behind it so you can check whether an object is blocking the fan.
Call for service if there is no obstruction or if you prefer not to
check the fan yourself.
Does this solve your problem? Yes! Problem solved.
No. I need Service.
Click here to book an appointment
for service.
ROOM AIR CONDITIONER TROUBLESHOOTING GUIDE
3