Karcher DE 4002 Operating Instructions Manual - 4. Safety Devices
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DE 4002
4. Safety devices
4.3 Safety thermostat
If the low-water thermostat fails and the cleaner
overheats, then the safety thermostat switches the
whole unit off. Contact your authorised KÄRCHER
Customer Service agent so that the safety
thermostat can be reset.
4.4 Safety cap
The safety cap seals off the boiler and keeps the
steam pressure inside. If the pressure controller
becomes defective, and the pressure inside the
boiler rises above 5.5 bar, an overpressure valve
opens inside the safety cap, and steam escapes
into the open. Contact your authorised KÄRCHER
Customer Service agent before using the cleaner
again.
This steam cleaner has been fitted with various
safety devices to provide multiple protection
measures. The most important safety components
are described below.
4.1 Pressure controller
The pressure controller maintains the boiler
pressure at as constant a level as is possible while
the cleaner is in use. The heater is switched off
when the operating pressure inside the boiler
reaches its maximum of 3.2 bar, and switched on
again when the pressure drops as a result of steam
being drawn off.
4.2 Low-water thermostat
As the water inside the boiler is consumed, the
temperature around the heater rises. The low-water
thermostat switches the heater off, and the red low-
water warning lamp lights up. The heater is
prevented from switching on again until the boiler
has cooled down, or it has been refilled with water.
5. General information
5.1 Warranty
The applicable warranty conditions in different
countries are issued by the respective national
distributor of KÄRCHER products. During the
warranty period, any malfunctions of the unit
caused by a material or manufacturing defect will
be repaired free of charge.
In the event of a warranty claim, please take the
cleaner, with accessories and proof of purchase, to
your original dealer or to the nearest authorised
customer service centre.
We will not be held liable for damages occurring as
a consequence of improper handling of the cleaner,
or of failure to observe the Operating Instructions.
5.2 Recycling information
This appliance has been constructed in compliance
with the Directive on Recycling, No. 2243, issued
by the German Association of Engineers.