LG Universal System Air Conditioner Service Manual page 95

6) Troubleshooting CH22
Display
Title
code
22
Max. C/T
Check Point
1. Check the power source.(200~240V)
2. Check the fan operation is right.
3. Check the current.
4. Check the install condition.
5. Check the internal circuit. (C/T, Diode, Resistor)
Cause of error
Over current
V
Troubleshooting Guide
Check point & Normal condition
Malfunction of compressor
Blocking of pipe
Low voltage input
Refrigerant, pipe length, blocked, ...
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Service Manual 95
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