Karcher 1201 Instructions Manual - 5. Maintenance
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towards the rear (child lock) (C4) so that the steam
switch (C3) cannot be pressed inadvertently.
Squeegee the glass surface in straight lines from
top to bottom. Wipe the rubber lip and the bottom
edge of the window dry after each pass.
Typical applications:
windows
mirrors
other glass surfaces
4.6 Wallpaper remover (H1)
Place the entire face of the wallpaper remover
along the edge of a sheet of wallpaper. Switch on
the steam supply (C3) and allow the steam to
penetrate the wallpaper until it is soaked through
(approx. 10 seconds).
Move the wallpaper remover to the next section
to be removed, keeping the steam switch (C3)
pressed. Use a putty knife to lift the loosened
wallpaper and pull it off the wall. Move the wallpaper
across the wall a section at a time and pull the paper
off in strips.
The steam may not be able to readily penetrate
woodchip wallpaper that has been painted over
several times. In this case we recommend that you
go over the wallpaper with a spiked roller before
steam is applied.
5. Maintenance
5.1 Cleaning the boiler
Note:
If you always use demineralised or distilled
water, it will not be necessary to clean the boiler.
Rinsing out the boiler:
If your tap water is harder than 1.8 mmol/l (level II),
rinse out the boiler inside the steam cleaner at least
every fifth time that it has been filled with water. If
the water is softer, rinse out the boiler at least every
fifteenth time that it has been filled with water. Your
water supply company will be able to tell you how
hard the water is in your area.
Fill the boiler with water and shake the cleaner
vigorously. This will loosen any scale that has
settled at the bottom of the boiler. Tilt the cleaner
towards the corner with the funnel inlet (A3) and
pour out the water (see Fig. 4).
Fig. 4: Cleaning the boiler
Descaling the boiler:
As scale also builds up on the walls of the boiler, we
recommend that you descale your steam cleaner at
the following intervals:
e~ L a~~W
f
M«NKOR
NMM
ff
NKOR«OKR
VM
fff ~
OKR«PKTR
TR
fs ~
[PKTR
RM
Table 1: Descaling the boiler
Unplug the cleaner from the mains electricity
supply before you descale the boiler.
Make sure that all traces of water are drained
from the boiler (see Fig. 4).
We recommend you use Kärcher Biological De-
calcifier RM 511 to descale the boiler. This biological
decalcifying agent is based on citric acid and is
therefore entirely biologically degradable.
In order to avoid damage to the cleaner, only use
products that have been approved by Kärcher.
Fully dissolve the contents of one bag of Kärcher
Biological Decalcifier RM 511 in one litre of warm
water.
Pour this solution into the boiler and leave it to
react for approx. 8 hours.
Do not screw the safety cap (A2) onto the
cleaner while you are descaling the boiler. Do
not use the cleaner if there is any descaling
liquid left inside the boiler.
After the period of soaking, pour the descaling
solution out of the boiler. A small amount will remain
inside, therefore you should flush the boiler out with
cold water two or three times in order to remove all
traces of the decalcifying agent.
The steam cleaner is now ready for use again.