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5. Trouble Shooting
6.21 Check code Trouble shooting CH51, CH60
Check the
indoor unit combination
Check the outdoor
unit max combination
Is it normal ?
Check PCB
Change EEPROM
Check the the
connection port.
Is it normal ?
Yes
Yes
No
Correct connection
No
Correct connection
Check Flow Chart (CH51)
Check Flow Chart (CH60)
51
60
Over capacity
EEPROM
Check sum
• Over capacity
Combination
• Check sum error
• Check the indoor unit capacity.
• Check the combination table.
• Check the connection port.
• Check the poor soldering.
Display
code
Title Cause of error Check point & Normal condition
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