Operating instructions

– 9
 Turn off the appliance and wait for 5 sec-
onds, turn it on again after 5 seconds.
 Clean the electrodes as well as the
space between the electrodes with a
brush.
 Remove blockages in the suction noz-
zle, suction tube, suction hose, or flat
pleated filter.
 Replace the safety filter sack.
 Replace the filled disposal bag
 Ensure the filter cover properly locks
into place.
 Replace the flat pleated filter.
 NT 50/1 only:
Check drain pipe for leaks.
Illustration
 Check/correct the correct positioning of
the flat pleated filter.
 Replace the flat pleated filter.
 Clean the electrodes as well as the
space between the electrodes with a
brush.
 Continuously check the filling level in
case of non-conductive liquid.
 Set the rotary switch to the correct suc-
tion hose cross-section.
 The safety filter sack must be replaced
when it is full and the minimum volume
flow is fallen short of.
 If the disposal bag is full and the mini-
mum volume flow is fallen short of it has
to be replaced.
 Replace the flat pleated filter.
 Allow appliance to cool down. Clean/re-
place the cooling air filter.
 Suction hose is not connected.
 Inform Customer Service.
 Inform Customer Service.
If malfunction can not be fixed, the de-
vice must be checked by customer ser-
vice.
At the end of its lifetime the appliance is to
be disposed of according to the statutory
provisions.
The warranty terms published by the rele-
vant sales company are applicable in each
country. We will repair potential failures of
your appliance within the warranty period
free of charge, provided that such failure is
caused by faulty material or defects in man-
ufacturing. In the event of a warranty claim
please contact your dealer or the nearest
authorized Customer Service centre.
Please submit the proof of purchase.
Only use original accessories and spare
parts, they ensure the safe and trouble-free
operation of the device.
For information about accessories and
spare parts, please visit www.kaercher.com.
Suction turbine does not start again
after the container has been
emptied
Suction capacity decreases
Dust comes out while vacuuming
Automatic shut-off (wet vacuum
cleaning) does not react
Horn sounds - interval tone
Horn sounds - permanent tone
Automatic filter cleaning is not
working
Automatic filter cleaning cannot be
switched off
Automatic filter cleaning cannot be
switched on
Customer Service
Disposal
Warranty
Accessories and Spare Parts
26 EN