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12
Troubleshooting
If a problem is detected, check the following list before requesting service. If none of the listed remedies corrects the fault
contact your Authorized NSK Dealer.
Trouble Cause Remedy
Control Unit cannot be turned
ON (LCD display does not turn
on)
AC Power Cord is not connected to Control
Unit.
Check the connection.
AC Power Cord is not plugged into wall
outlet.
Check the connection.
Fuse has blown. Service only by Authorized NSK Dealer.*
Control Unit turns ON,
Ultrasonic Output is displayed,
and beep sound is heard.
Foot Control is being operated. To prevent accidents, the Handpiece will
not work if the Main Power is turned ON
while the Foot Control is being operated.
Activate the Foot Control again.
The Tip does not vibrate (no
indication of Ultrasonic Output
Display).
Foot Control is not connected. Check the connection.
Handpiece Cord is not connected to Control
Unit.
Check the connection.
The Tip does not vibrate
(Indication of Ultrasonic Output
Display).
Faulty circuit. Service only by Authorized NSK Dealer.*
Weak vibration The Tip is worn or broken. Replace with a new Tip.
Wrong mode. Change to the correct mode.
The Tip is not correctly tightened. Tighten the Tip until the Tip Wrench clicks.
Incorrect power setting. Change to the correct mode and power
range for the Tip as indicated on the Tip
case.
Foot Control not connected properly. Connect Foot Control properly.
Failure inside the Handpiece. Service only by Authorized NSK Dealer.*
Failure inside the Foot Control. Service only by Authorized NSK Dealer.*
The Tip breaks easily. Power Level is not right for the Tip
mounted.
Change to the correct mode and power
level indicated on the selected Tip case.
The Tip comes off. The Tip is not correctly tightened. Tighten the Tip until the Tip Wrench clicks.
Handpiece makes a loud
noise.
Power Level is not correct for the selected
Tip.
Change to the mode and power level
indicated on the selected Tip case.
Tip is not correctly tightened. Tighten the Tip until the Tip Wrench clicks.
Failure inside the Handpiece or the Control
Unit.
Service only by Authorized NSK Dealer.*
Handpiece becomes hot. Power Level is not right for the selected
Tip.
Change to the mode and power level
indicated on the selected Tip case.
Tip is not tightened sufficiently. Tighten the Tip until the Tip Wrench clicks.
Failure inside the Handpiece or the Control
Unit.
Service only by Authorized NSK Dealer.*
Debris is clogging the Handpiece and
blocking irrigation flow.
Place air syringe against Water Pipe and
blow air through it. If this does not clear it,
Contact your Authorized NSK Dealer.
Irrigation is not supplied. Make sure the pack contains solution
and the Irrigation Tube is not leaking nor
blocked.
Irrigation does not exit as
spray.
Spray depends on the combination of flow
level, power level, and Tip shape.
With some flow levels and Tip shapes, it is
more difficult to form a spray. This is not a
malfunction.
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