Carrier 619FB Service Manual page 24

3. Malfunction of Protection of Jumper Cap C5
Troubleshooting for C5
Is there jumper cap on the
the jumper cap inserted
Replace the jumper cap
with the same model
Replace the mainboard
with the same model.
malfunction
mainboard ?
Yes
No
Is
correctly and
tightly ?
Yes
No
Is malfunction
eliminated
No
End
Fig. 27 – Troubleshooting
No
Assemble the jumper
cap with the same
model
Is malfunction
eliminated
No
Insert the
jumper cap
tightly
Is malfunction
Yes
eliminated
Yes
24
Appearance of
the jumper cap
Yes