Trouble Shooting
Display
Title
code
51
Over capacity
EEPROM
60
Check sum
Check Flow Chart (CH51)
Check the
indoor unit combination
Check the outdoor
unit max combination
Is it normal ?
Yes
Check PCB
Check Flow Chart (CH60)
Check the the
connection port.
Is it normal ?
Yes
Change EEPROM
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Only for training and service purposes
Cause of error
• Over capacity
Combination
• Check sum error
No
Correct connection
No
Correct connection
- 78 -
Check point & Normal condition
• Check the indoor unit capacity.
• Check the combination table.
• Check the connection port.
• Check the poor soldering.
LGE Internal Use Only