User Manual
22 
Troubleshooting Tips 
Follow the troubleshooting guide below to resolve common issues. 
Issue 
Possible Cause 
Solution 
My air conditioner is not 
functioning at all. 
The wall plug is disconnected. 
Make sure the unit is plugged 
in. 
The LCDI power cord is 
tripped. 
Press the Reset button on the 
LCDI cord. 
The house fuse is blown or the 
circuit breaker is tripped. 
Replace the fuse with a time 
delay type or reset the circuit 
breaker. 
The control panel is off. 
Turn the control panel ON and 
set it to your desired setting. 
There is insufficient power. 
Move the unit to another outlet. 
Check your circuit breaker. 
(Refer to the rating label on the 
back of the unit to determine 
the Amperage draw). 
The air from the unit does not 
feel cold enough. 
The room temperature is 
below 62° F (17° C). 
Cooling may not occur until the 
room temperature rises above 
62° F (17° C). 
The temperature sensing 
element is touching the cold 
coil, located behind the air 
filter. 
Straighten the tube away from 
the coil. 
The compressor shut-off by 
changing modes. 
Wait approximately 3 minutes 
and listen for the compressor 
to restart when it is set in the 
COOL mode. 
The air conditioner is cooling 
but the room is too warm. Ice 
is forming on the cooling coil 
behind the decorative front. 
The outdoor temperature is 
below 64° F (18° C). 
To defrost the coil, set the unit 
to FAN ONLY mode. 
The air filter may be dirty. 
Clean the filter. Refer to the 
maintenance section. To 
defrost set the unit to FAN 
ONLY mode. 
The thermostat is set too cold 
for night-time cooling. 
To defrost the coil, set the unit 
to FAN ONLY mode. Then, set 
the temperature to a higher 
setting. 
The air conditioner is cooling 
but the room is too warm. NO 
ice is forming on the cooling 
coil behind the decorative 
front. 
The air filter is dirty and the air 
is restricted. 
Clean the air filter. Refer to the 
maintenance section. 
The temperature is set too 
high. 
Set the temperature to a lower 
setting. 
The air directional louvers are 
positioned improperly. 
Position the louvers for better 
air distribution. 










