Troubleshoting - NSK NLZ E Mode D'emploi

7-2 Troubles and Actions
When trouble is found, check the following again before contacting your Authorized NSK Dealer. If none of
these is applicable or the trouble is not remedied even after action has been taken, a failure of this product
is suspected.
Troubles
The LCD Display does not light.
The motor does not run.
The rotation speed of the motor
does not rise.
Beeps continue to sound when
turning ON the switch.
The LED does not light.
The motor heats up abnormally
during rotation.
Water leakage
Settings when the power is
turned ON are different from the
previous ones when turning off
the power.
Cause
The power Switch is OFF.
The AC adapter or AC power cord is
not connected correctly.
Internal Fuse is blown, due to some
reason
The tubing, motor cord, AC adapter
or AC power cord is not connected
correctly.
The air pressure is not given, or not
proper from the dental unit.
The LCD Display shows an error
code.
The air pressure of the dental unit
is lower than the "Upper limit of the
air pressure"
You are stepping on the foot pedal
when turning on the power switch.
(Safety function)
Reached the end of life expectancy.
Coolant air is not given, or not
proper from the dental unit.
The tubing, motor cord is not
connected correctly.
The power is turned OFF using the
main unit's power switch.
47

Troubleshoting

Actions
Turn ON the power.
Check the connection.
Contact your Authorized NSK
Dealer.
Check the connection.
Check the air pressure of the dental
unit.
Refer to the error code.
(Refer to "7-1 Error Code")
Set the Upper limit of the air
pressure below the air pressure of
the dental unit.
(Refer to "3-8 Changing the settings
for various functions")
Do not step the foot pedal, and turn
on the power switch.
Contact your Authorized NSK
Dealer.
Check the air pressure on the side
of the dental unit.
Check the connection. If it is
happening inside the control unit,
contact your Authorized NSK Dealer.
Previous settings will not be
retained when turning OFF the main
unit's power switch. Turn OFF using
the control unit's Power Key.