10
Periodical Maintenance Checks
Perform a periodic inspection on the product every three months based on the following inspection chart. If you notice
a problem with an item for inspection, contact your Authorized NSK Dealer.
Item for Inspection
Rotation
11
Troubleshooting
11-1 Errors
If the Motor Handpiece stops because a problem occurs due to a malfunction, overload, or misuse, etc., the problem
status of the Control Unit is automatically detected, and the user is notified of the error via the display area (lights)
and notification sounds (beeps).
If an error is displayed, check the following table and perform the solution indicated.
Error
ON-OFF LED flashes
Notification sound
REVERSE LED flashes
Notification sound
AUTO CRUISE LED
flashes
Notification sound
ON-OFF LED and
REVERSE LED flash
Notification sound
*Cannot be fixed at dental clinics, etc.
Attach a bur to the Motor Handpiece, and rotate the Motor Handpiece. Check whether
there is a problem such as abnormal vibration, noise, or generated heat.
Description of Error
The motor is subject to
Overcurrent error
unexpected load.
Even if the load is less than the
overload threshold, the internal
temperature of the motor
Internal overheat
rises when the load is applied
error
continuously to the motor for
an extended period of time. In
this case, the motor will stop to
protect the power supply.
The motor will stop to protect the
Overvoltage error
motor if overvoltage is applied to
it.
If system data cannot be loaded
System error
when the power is turned ON,
key operations are disabled.
Description
Cause
Remove your foot from the control
pedal or press the ON-OFF Key to
stop rotation.
Wait for the internal temperature to
drop, and depress the control pedal
or press the ON-OFF Key.
Turn the power OFF and then ON
again. If the error is not resolved,
contact your Authorized NSK Dealer.*
Turn the power OFF and then ON
again. If the error is not resolved,
contact your Authorized NSK Dealer.*
14
Solution