Gree GWC12NC-K3NNA3E Service Manual page 39

9.2.2 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
36
Troubleshooting for C5
malfunction
Is there jumper cap on the
mainboard ?
yes
no
Is
the jumper cap inserted
correctly and
tightly ?
yes
no
Replace the jumper cap
with the same model
Is malfunction
eliminated
no
Replace the mainboard
with the same model.
End
Appearance of
no
the jumper cap
Assemble the jumper
cap with the same
model
Is malfunction
eliminated
no
Insert the
jumper cap
tightly
Is malfunction
yes
eliminated
yes
Troubleshooting
yes