CYBEX Arc Trainer 750A - Every 5000 Miles (8000 KM)

Cybex 750A/750AT Arc Trainer Service Manual
Service
Page 4-24
ERROR 34 - COMM WATCHDOG TRIGGERED
Note ERROR 34 present
in log. Restart unit.
Does the error
reoccur after restart?
Check data cable for
continuity and damage
reseat all connections on
cable.
Yes
Did the data cable
check out OK?
Yes
Replace lower controller
board.
Completed.
No
No
Replace data cable.