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Multi F Four-Way Ceiling Cassette Service Manual

ManualsBrandsLG ManualsAir Conditioners30000 BTU Cooling / 32000 BTU Heating 22 SEER 208/230 Volt Two Zone Mini Split Package with Ceiling Cassette Evaporators
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Copyright ©2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Part 5. Trouble Shooting
6.2 The Product doesn't operate with the remote controller
Turn on the main power
Yes
No
A "Beeping" sound is made
from the indoor unit
* Refer to 10.1
* Check the voltage of power
(AC220V/AC240V, 50Hz).
Is it possible to turn on the unit
by ON/OFF button on display?
Yes
No
Is the remote controller
working properly?
Yes
* When the mark ( ) is displayed
in LCD screen, replace battery.
No
* Check the contact point of CN-DISP 1, 2 connector & Re connector.
* Check display PCB Assembly
- Voltage between CN-DISP1 - should be DC +5V,
- If problem still persists, Replace display PCB
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