RUN MED: Service & Maintenance Manual - rev. 1.0
6.6.1. ERROR OH
This error indicates overheating of the heat sink on the AT driver board.
YES
Replace the AT driver
board
OH
Does the machine resume
correct operation af ter being
switched of f f or 1 hour?
Probable overheating of the
AT driv er. The machine is
OK
NO
Page 6.15