Gree GWH(09)MA-K3DNA3B - Page 45

43
Troubleshooting
9.2.3 C5 malfunction
C5 is displayed
on the unit.
Is there jumper cap on
the controller ?
Install a matching
jumper cap.
No
Is the jumper cap inserted
incorrectly or improperly?
Re-insert the
jumper cap.
The mainboard is
defined abnormal
replace it.
Yes
No
Yes
End
Is the
malfunction
eliminated?
Yes
No
Is the
malfunction
eliminated
No Ye s
Is the
malfunction
eliminated?
Replace the
jumper cap.
No
Yes
Possible causes:1.There is no jumper cap on the controller;2.Jumper cap is not inserted
properly and tightly;3.Jumper cap is damaged;4. Controller is damaged.See the flow chart
below: