LG Multi V CRUN Series Service Manual page 234

Self-diagnosis function
Fault diagnosis and Trouble shooting guide
Display
Title
code
35
Low pressure
Trouble shooting Flow
Does SVC valve
Check whether pipe is blocked
and refrigerant state
234 Trouble Shooting Guide
Meaning
Compressor off has occurred
3 times in1 hour
The suction pressure of
compressor is under the
limit
Does suction
pressure really
drop?
Yes
open?
Yes
• Abnormal of sensor for detecting pressure of
suction pipe of compressor
• Malfunction of circuit for detecting pressure of
suction pipe of compressor
• Closing of SVC valve
• Shortage of refrigerant
No
Is low
pressure
normal?
Replace PCB
No
Open SVC valve
Cause of error
No
Yes
Replace low
pressure sensor