The Phenomena From Main Component Failure - LG ACHH Series Manual

The phenomena from main component failure

7. The phenomena from main component failure
The phenomena from main component failure
Component Phenomenon
Not operating
Compressor
Stop during running
Abnormal noise
during running
High pressure error
Outdoor
in cooling mode
fan
operation
No operation sound
after switching ON
the power supply
Outdoor
EEV
Low pressure error or
discharge tempera-
ture error
When system fault occurs, the error code is displayed on the indoor unit display or remote control display.
Cause
Motor insulation broken
Strainer clogged
Oil leakage
Motor insulation failure
R-S-T misconnection
Motor failure,
bad ventilation around
outdoor heat exchanger
Coil failure
EEV closed
- 34 -
Check method and Trouble shooting
Check resistance between terminals and
chassis
Change strainer
Check oil amount after opening oil port
Check resistance between terminals and
chassis
Check compressor R-S-T connection
Check the fan operation to confirm proper
motor functioning. Switch OFF the outdoor
unit and remove obstacles, if any, around
the HEX. Check connector
Service necessary
Please replace necessary