LG AMNH076LQL0 Service Manual page 190

Troubleshooting Guide
13) Troubleshooting CH51, CH60
Display
Title
code
Over capacity
51
Over capacity
60
Model
A6UW368FA0
A7UW428FA0
A8UW488FA0
A9UW548FA0
Check Point
• CH 51
1. Check the indoor unit capacity.
196 Multi type Air Conditioner
Cause of error
• Over capacity
• Check sum error
Gross max. capacity
47
58
64
73
Check point & Normal condition
• Check the indoor unit capacity.
• Check the combination table.
• Check the PCB ASM P/No.
• Check the poor soldering.
Max. single indoor unit capacity
24
24
24
24
• CH 60
1. Check the insertion condition of EEPROM.
2. Check the poor soldering