44
Trouble-shooting
7 – 2
Failure causes and countermeasures
A malfunction? If you think that this is the case, please check the following again before you call for
repairs.
symptoms
checklist
cause
countermeasure
No vibration.
The control panel
is not illuminated.
Main power cord is not
plugged in.
Plug the main power cord into
an outlet.
The main power switch is in
the OFF position.
Turn the main power switch
to the ON position.
Main power cord breakage.
Replace the main power
cord.
Faulty main power switch.
Please send it to us.
Fuses are blown.
Replace the fuses. If it gets
disconnected again for
unknown reasons, please
send it to us.
The LED on the
ON / OFF key
does not light up.
The ON / OFF key is in the
OFF position.
Turn the ON / OFF key to
ON.
The handpiece plug is not
fully connected to the
Handpiece socket.
Make sure the handpiece
plug is securely connected to
the handpiece socket.
Faulty foot switch.
Please send it to us.
Disconnection of the output
cord.
The LED on the
ON / OFF key is
on.
Defects in the ultrasonic
transducer or controller.
The vibration
stopped while I
was working.
The ERROR LED
is lit
.
An abnormal load has
triggered the protective
function.
Do not apply more than
necessary working pressure
to the tip tool.
The output level of the UP
key is high.
Use the DOWN key to lower
it slightly.
Abnormal heat generation
triggered the handpiece heat
protection function.
Turn the main power switch
off and let it cool for a while.
Loose tools.
Retighten the tool.
Tool edge damage or
bending.
Replace the tool.
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