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Troubleshooting Tips
Problem
Possible Causes
Unit does not start or
operate
Remote control is not
working
Air conditioner is
working but the room
is not cooling.
Error Codes
Error Codes
E1
E2
E4
FL
49-5000439 Rev. 3
Power supply cord is not plugged into an
outlet.
Power supply cord has tripped.
The Power button has not been pressed. Press the Power button on the Control Panel or
There is no power to the electrical outlet. Plug a working lamp into the outlet to check for
A household fuse has blown or a circuit
breaker has tripped.
The control was programmed for a Time
Delay.
The batteries in the remote control are
dead.
The internal water tank is full.
NOTE: The air conditioner automatically
turns off, and the Water Full indicator
illuminates to alert you of this condition.
Batteries are dead.
Batteries are installed incorrectly.
The room temperature is hot.
NOTE: On extremely hot and humid
days,the air conditioner will take longer
to cool the room.
The control is set incorrectly to Fan or
DRY mode.
Airflow is restricted.
Temperature set too high.
Air filters are dirty or restricted.
Air conditioner installed incorrectly
Doors and windows are open.
Meaning
Abnormal sense of coil pipe sensor
Abnormal sense of room temperature sensor
Anti-frozen protection
Full water
Solution
Plug the power cord into a grounded 3 prong
outlet.
Press and release the RESET button on the
power supply cord.
Remote Control to turn ON the air conditioner.
power.
Replace the fuse or reset the circuit breaker.
Cancel the Time Delay. See "Control Panel."
Replace the batteries.
Empty the water tank. See "Air Conditioner
Care."
Replace the batteries.
Make sure the batteries are inserted in the
correct position.
Allow time for the room to cool when you first turn
on the unit.
Make sure the air conditioner has an adequate
BTU rating for the size of the room being cooled.
Set the Mode to Cool and the Fan Speed to High.
Remove any obstacles to the airflow and redirect
airflow for uniform cooling.
Lower the set temperature.
Clean the air filter. See "Air Conditioner Care."
Check the exhaust hose and window panel for
proper installation.
Close the doors and windows to the room being
cooled to prevent cooled air from escaping.
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