140
C5
Jumper Cap Malfunction
Status:
Wireless remote will not send command to
indoor unit.
1. No jumper cap inserted on board
2. Jumper cap not fully seated
3. Jumper cap damaged
4. Bad control board
Error Code Diagnostics
C5 Error Code
Start Troubleshooting
Is there a jumper cap on the
controller?
Install a matching
jumper cap
End Troubleshooting
Yes
No
Re-insert the jumper
cap
Is system
operating properly
No
Yes
Yes
No
Is the jumper cap
inserted correctly?
Yes
Is system
operating properly
Replace the jumper
cap
Is system
operating properly
Replace the main
control board
Yes
No
Yes