14
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
Description
Rotation
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.
10
Periodical Maintenance Checks
Error
Description of Error
Cause
Solution
ON-OFF LED flashes
Notification sound
Overcurrent error
The motor is subject to
unexpected load.
Remove your foot from the control
pedal or press the ON-OFF Key to
stop rotation.
REVERSE LED flashes
Notification sound
Internal overheat
error
Even if the load is less than the
overload threshold, the internal
temperature of the motor
rises when the load is applied
continuously to the motor for
an extended period of time. In
this case, the motor will stop to
protect the power supply.
Wait for the internal temperature to
drop, and depress the control pedal
or press the ON-OFF Key.
AUTO CRUISE LED
flashes
Notification sound
Overvoltage error
The motor will stop to protect the
motor if overvoltage is applied to
it.
Turn the power OFF and then ON
again. If the error is not resolved,
contact your Authorized NSK Dealer.*
ON-OFF LED and
REVERSE LED flash
Notification sound
System error
If system data cannot be loaded
when the power is turned ON,
key operations are disabled.
Turn the power OFF and then ON
again. If the error is not resolved,
contact your Authorized NSK Dealer.*
*Cannot be fixed at dental clinics, etc.
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.
11
Troubleshooting
