Gree GWH18PD-K3NNA1A Service Manual page 45

(3) Jumper cap malfunction (C5)
42
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 jumper
Yes
cap
Is the
malfunction
eliminated?
Yes
Troubleshooting
Yes
Yes