Lg General Wall Mounted-Inverter Type User Manual Page 55

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Service Manual 55
Part 4 Trouble Shooting
10
D_pipe TH. is short or open
D_pipe TH. is not connected to the outdoor pcb assembly
Damage or defect on the sensing circuit of outdoor pcb assembly
D-Pipe TH. is short or
open
D_PIPE TH. is connected to
Outdoor pcb assembly ?
D_PIPE TH. is right ?
YES
No
Connect to CN-D_PIPE
in outdoor pcb assembly
Sensing circuit of outdoor
pcb is right ?
No
Check D_PIPE TH.
- Measure resistance of TH.
(about 200k at 25°C(77°F)).
YES
No
- Check soldering state of
R07H, R08H, C04H
Check flow
Description Cause of error
Error code
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