29
Troubleshooting
Handpiece vibrates, is very noisy
and/or becomes warm in the front
part.
Use of bent burs/tools.
→
Use a
different bur/tool to test this. The
bur/tool itself can be tested with the
hadewe Bur Shaft Tester (art. no.
4990) to see if it is bent.
Maximum allowed speed of the tool
was exceeded, which caused a
stronger vibration.
→
Pay attention
to the tool (e.g. bur, capper and
instrument) manufacturers handling
details.
Bur/tool can be inserted only with
difficulty or not at all.
Use of bent burs/tools.
→
Use a
different bur/tool to test this. The
bur/tool itself can be tested with the
hadewe Bur Shaft Tester (art. no.
4990) to see if it is bent.
It does not spray.
Pressure cannot be set up in the
tank, because the lid is not tightened
well.
There are parts of dirt in the spray
system
→
Cleaning the spray
system according to the instructions
in the manual.
The blue water filter (art. no. 3497)
in the tank is blocked
→
Change the
water filter.
Unit does not work at all.
Check if the main switch of the unit
is turned on at the side of the unit.
Foot switch is used constantly or
faulty.
→
Pull out the socket of the
foot switch to see if this is the cause.
Pull out the mains plug to reset the
device.
After lengthy use unit does not
spray.
Unit is overheated.
→
Slots of the
unit should not be covered or
blocked. Let cool down the unit for a
while.
The unit shows different sound
levels at different sites of use.
The sound level varies according to
the surroundings of the unit. If you
set up the unit directly in front of a
wall, the sound is reflected stronger,
as if it would, while standing further
away from a wall.
Handpiece motor stutters shortly
(approx. 1 sec) when turning unit on.
In very rare cases this effect did
appear. It will not harm or damage
the device.
Spray stream stutters.
There is air in the spray system.
After 5 min running, this effect will
disappear.
Acceleration of the spray stream
Note: To reduce the starting time of
the spray, turn the spray regulator
on Max. After the spray started,
adjust the stream to the requested
amount of water.
Fluid leaks out of the unit.
Please be aware of the maximum
filling level of the tank: Do not
exceed the maximum level when
filling the tank.
Memory key for speed is badly
recognized when pressed for a
longer time.
You improve the recognition when
-
you don’t touch the screen with
your hand while pressing the key,
-
you don’t support yo
urself on the
unit while pressing the key.
For descriptions of the messages on
the device display see page 24.
