LG CT09F Service Manual page 109

Part 4 Trouble Shooting
6.7 Troubleshooting Outdoor Error
n Flow of trouble diagnosis
Is high pressure switch
connector connected
to PCB?
Note 1)
Yes
Is high pressure switch
connector short
during off time?
Note 2)
Yes
Is SVC valve open?
Yes
Is this error appeared
again after reset?
Yes
Is high pressure
more than 4 000 kPaG
at manifold gauge?
Yes
Is high pressure of
LGMV similar as
at manifold gauge?
Yes
Check pipe is blocked or
not and take measure
No
Connect securely
No
Is high pressure switch
terminal short?***
Yes
Replace connecting cable
No
Open SVC valve
No
Re-check momentary
problem or not
Replace PCB
No
No
Replace high pressure switch
No
Replace high pressure switch
Note 2)
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