LG ABNW85GB9A0 Svc Manual page 47

Part 4 Trouble Shooting
6.6 Troubleshooting Outdoor Error
CH 21 (DC Peak / Comp IGBTM Fault)
Checking outdoor devices for shielding
Cause of
Trouble
Blocking of the front part of
outdoor devices
Whirlwind
Installation of outdoor devices
in narrow space
Blocking of the lateral suction
point on the wall of the outdoor
devices
Shielding
Foreign substances in the heat
exchanger and obstacles in the
surrounding
Possible infiltration of moisture
Corrosion
/ highly humid area
When the front/back has a wall (1 side)
More than 700mm
More than 300mm
More than
1200mm
When the front/back/left/right have
walls (2 sides)
More than 300mm
More than
600mm
More than
300mm
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Condition
Frequent turning-off of the compressor
Frequent turning-off of the compressor
Corrosion of heat exchanger
tion efficiency
parts
More than 700mm
More than
600mm
More than
300mm
Mechanism of Fault Generation
: Inflow of high-temperature air generated by
outdoor fans into the air conditioner
Wrong influence to the system in over-load
state
: Elevation of the pipe temperature due to
reduced wind velocity
Wrong influence to the system in over-load
state
Transfer of troubles to other
When the front/back/left/right
have walls (3 sides)
More than
300mm
- 47 -
Reduced opera-
More than 300mm
More than 700mm
LGE Internal Use Only