8
10. Troubleshooting
10.1 Error codes
Error code Status
Possible reason
1E
Motor sensor error
1. The motor cable is damaged or not connected.
2. The motor sensor is damaged.
2E
Motor blocking error
1. The chuck is open.
2. The handpiece is damaged.
3E
Overload protection error
1. The unit was operated under overload conditions.
2. The motor cable resp. the power cable is damaged.
4E
Over-voltage protection error 1. The control unit is damaged.
2. The power supply is interrupted.
5E
Overheating error
1. The unit was operated under overload conditions.
2. The control unit is overheated.
It should never be exposed to direct sunlight.
6E
Overload error
After normal starting the motors has blocked.
7E oder 8E
Self-test error
The control unit has a malfunction.
