10
10
10
8
10
Device
Description
Cause and solution
Handpiece
Battery is charged but
motor does not run.
• Reconnect the connecting cable to the control unit
• Motor cable is faulty; replace motor cable
• Motor is faulty; send in to joke for repair
• Collet open; close collet.
Motor suddenly stops
during work.
• Hand/foot switch is set to „H“; select „F“.
Foot pedal does not
work.
• Hand/foot switch is set to „H“; select „F“
• Foot pedal is faulty; check or have it repaired
• Foot pedal is faulty; check
• Foot pedal has no connection; renew connection
• Battery discharged; recharge or replace battery.
Motor stops every
2 to 3 seconds or does
not run at full power.
• Battery faulty; replace battery.
Battery is charged, but
motor does not run or
keeps stopping.
• Battery faulty; replace battery.
• Speed controller is deactivated; activate controller.
• Motor cable is not properly connected; connect cable.
Battery
Battery is not re-
charged or battery
is charged but motor
does not run.
• Fuse in the power supply unit/charger is blown; replace
power supply unit.
• Power supply unit cable is faulty; replace cable.
• No power supply unit cable connection; check connection.
• Speed controller is faulty; replace controller.
• Not a standard charger/power supply unit; only use an
original power supply unit/charger.
Troubleshooting
