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Single Zone Mega and Mega 115V Wall Mounted Owner’s Manual
Due to our policy of continuous product innovation, some specications may change without notication.
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LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
TROUBLESHOOTING
Issue Cause Corrective Action
There is a burning smell and strange sound
coming from the unit.
N/A
Immediately turn off the air conditioner and contact your
installing contractor.
Water leaks from the indoor unit even when
the humidity level is low.
The power cord is damaged or generating
excessive heat.
A switch, a circuit breaker (safety, ground) or
a fuse is not operating properly.
The air conditioner does not work.
The air conditioner will not turn on. Ensure the power cord is plugged into the outlet.
A fuse has blown or the power supply
is blocked.
Replace the fuse or check if the circuit breaker has tripped.
A power failure has occurred.
Turn off the air conditioner when a power failure occurs. When
the power is restored, wait 3 minutes, and then turn on the air
conditioner.
The voltage is too high or too low. Check if the circuit breaker has tripped.
The air conditioner turned off
automatically at a preset time.
Press the power button.
Battery setting is wrong on the remote
controller.
• Check to see that the batteries are inserted with the correct
terminals (+) and (-).
• Replace with new batteries.
The air conditioner does not generate
cool air.
Air is not circulating properly.
Make sure that no curtains, blinds or furniture are blocking the
front of the air conditioner.
The air filter is dirty.
Clean the air filter once every 2 weeks. Refer to the “Air Filter -
Cleaning/Maintenance” section for additional information.
The room temperature is too high.
In the summer it may take additional time to cool indoor air.
In this case, select jet cool operation to cool the indoor air
quickly. Refer to “Jet Cool/Jet Heat Operation” for additional
information.
Cold air is escaping from the room.
Ensure cold air is not escaping through ventilation points in the
room.
The desired temperature is higher than
the set temperature.
Set the desired temperature to a level lower than the current
temperature.
There is a nearby heating source.
Avoid using a heat generator such as an electric oven or gas
burner while the air conditioner is in operation.
Air circulation operation is selected.
During air circulation operation, air blows from the air
conditioner without cooling or heating the indoor air. Switch the
operation mode to cooling operation.
Outside temperature is too high.
Air conditioner cooling capacity may not be sufficient to handle
hot weather.
Table 7: Single Zone Mega Wall Mount System Troubleshooting
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