LG AMNH076LQL0 Service Manual page 189

12) Troubleshooting CH51, CH60
Display
Title
code
51
Over capacity
EEPROM
60
Check sum
Model
A2UW146FA0
A2UW186FA0
A3UW186FA0
A3UW246FA0
A4UW246FA0
A4UW306FA0
A6UW406FA0
Check Point
• CH 51
1. Check the indoor unit capacity.
Cause of error
• Over capacity
Combination
• Check sum error
Gross max. capacity
21k
24k
33k
39k
52k
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
12k
12K
18K
18K
24K
• CH 60
1. Check the insertion condition of EEPROM.
2. Check the poor soldering
Troubleshooting Guide
Service Manual 189