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Problem Cause Solution
The unit does not work at all.
Cooling performance is poor.
The unit is operating, but the air
remains warm.
The compressor stops running after a
short time.
Water is leaking.
The unit is making unusual noises.
The unit is working, but the room is
still not cool enough.
The evaporator fan is noisy.
The condenser fan is noisy.
The air conditioner does not operate
with the remote control.
The unit is not plugged in.
There is no power at the receptacle.
The ON timer is activated.
The wrong function mode was selected.
The air exhaust hose or the air intake
hose is blocked or broken.
The air filters are dirty.
There is an obstacle in front of the unit.
The compressor is not yet operating.
The temperature is incorrectly set.
There is not enough voltage.
The unit is connected to an
extension cord.
The drain tube is clogged.
The unit is not level.
The room’s BTU demand is greater
than the unit’s capacity.
Cross flow fan is not well
balanced.
The fan is rubbing against the
plastic housing.
There is an obstacle between the
remote control and the signal receiver.
The batteries are weak.
You are too far from the unit.
Plug in the power cord.
Check the fuses and the
circuit breaker.
Cancel the timer
Select the correct function mode.
(auto, cooling)
Remove any object that may be
obstructing air circulation. Repair
the hose or change it.
Clean filters.
Clear all obstacles.
Wait 3-5 minutes for the compressor
protection circuit to turn off.
Adjust the temperature setting.
Unplug other appliances that may
overload the electrical circuit
breaker.
Remove the extension cord or
use a proper extension cord for air
conditioners.
Remove the blockage.
Place the unit on a level surface.
The room needs a greater cooling
capacity: add another unit or
upgrade to a unit with greater BTU
capacity.
The unit needs to be repaired, or
parts must be replaced.
The unit needs to be repaired, or
parts must be replaced.
Make sure the signal path is clear.
Replace the batteries.
Get closer
(Within 23 ft).
Before contacting the HVAC technician, perform the following simple checks. They may save you the time and expense
of an unnecessary call.
CAUTION:
Have repairs performed by a certified HVAC technician.
Owner’s manual _17
17. TROUBLESHOOTING