Gree GWH(09)MA-K3DNA2B Service Manual page 45

9.2.3 C5 malfunction
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:
43
C5 is displayed
on the unit.
Is there jumper cap on
the controller ?
Yes
No
Is the jumper cap inserted
incorrectly or improperly?
No
No
Replace the
jumper cap.
Is the
malfunction
eliminated?
No
The mainboard is
defined abnormal
replace it.
End
Install a matching
No
jumper cap .
Is the
malfunction
eliminated?
Re-insert the
Yes
jumper cap.
Is the
malfunction
Yes
eliminated
Yes
Yes
Troubleshooting