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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.
©
LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
TROUBLESHOOTING
Table 7: Single Zone Mega Wall Mount System Troubleshooting (Continued)
Issue Cause Corrective Action
Unusual noise or vibration during unit operation.
Clicking noise during operation.
A clicking sound can be heard either
when the unit starts or stops due to
movement of the reversing valve.
These are normal noises for the air conditioner as it shifts into
different modes of operation. Once a mode is activated, noise
or vibration should stop.
Creaking sound during operation.
The plastic parts of the indoor unit
make sounds due to shrinkage
and expansion during sudden
temperature shifts.
Water flowing sounds.
Switching of the flow of refrigerant
through the air conditioner produces
water flowing noise.
Unusual odor emits from indoor unit.
A bad odor can emit from the indoor
unit due to mustiness or cigarette odor
being taken in by the indoor unit from
the room it is located in.
If the smell does not disappear, clean the air filter. If the odor \
persists after cleaning the air filter, contact the installing
contractor.
Table 8: Troubleshooting Wired Remote Controllers
1
Issue Corrective Action
Directional buttons such as up/down or left/right
do not function when selected on wired remote
controller.
If the air conditioner function is available (active), then the wired remote controller will be able to change
the air conditioner operation mode.
Directional swing buttons do not display when
selected on the wired remote controller.
Unable to select power heating on indoor unit.
Unable to set power heating on wired remote
controller.
Not possible to set time for automatic on/off operation with a wired remote controller or by using app
software.
The remaining time for the automatic on/off
timer is not shown on the app software.
1
Wired remote controllers - PQRCVSL0(QW) or LG Programmable Thermostat - PREMTB10U (only sold in the US)
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