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English
11-2 Problems and Solutions
If a problem is detected, check the following before requesting a repair. If none of the following apply, or if the
symptom is not resolved after performing the indicated solution, a failure of the product is suspected. Contact your
Authorized NSK Dealer.
<Control Unit/Motor Handpieces>
Problem
Cause
Solution
The Power LED does not turn on when
the Power is turned ON.
Is the Power Cord fully inserted?
Insert the Power Cord fully into the
power supply outlet and inlet.
The Power LED turns on, but the bur
does not rotate.
The motor rotates with the ON-OFF
Key, but not with the Foot Control.
Turn the power OFF, and perform the
procedure indicated in “Operation
Procedure” again. If the problem is not
resolved, the Foot Control requires an
inspection. Contact your Authorized
NSK Dealer.*
The motor does not rotate with the
ON-OFF Key or the Foot Control.
Turn the power OFF, and perform the
procedure indicated in “Operation
Procedure” again. If the problem is
not resolved, the Control Unit and Foot
Control require an inspection.
Contact your Authorized NSK Dealer.*
Is the Power turned ON while
depressing the Foot Control?
Remove your foot from the Foot
Control, and then press it down again.
Rotation cannot be adjusted with the
Speed Control Knob.
When Using the Control Unit
Rotation does not change by turning
the Speed Control Knob.
Turn the power OFF, and perform the
procedure indicated in “Operation
Procedure” again. If the problem is not
resolved, the Control Unit requires an
inspection. Contact your Authorized
NSK Dealer.*
When Using the Foot Control
Rotation does not change by adjusting
the speed.
The rotation direction does not switch.
The rotation direction does not change
when the Forward/Reverse Selector
Key is operated.
The auto cruise function does not
work.
When the product is in the auto cruise
standby mode, the auto cruise function
does not work by operating the Foot
Control.
*Cannot be fixed at dental clinics, etc.
