Service manual
Error Cause
SM 6-35 M085/M086
Trouble –
shooting
Error code F8
Machine Error F8
Battery connection failure
Step Cause Remedy
1 Battery harness connection failure Reconnect the battery harness.
2 Battery exhausted Replace the battery.
3 Main PCB failure Replace the main PCB ASSY.
Error code F9
Machine Error F9
Maintenance mode 74 Non-decision (Inputting omission of the customizing code.)
Step Cause Remedy
1 Turn the power off, when the
Maintenance mode 74 is in
progress.
Implement the Maintenance mode
74 again.