Kärcher SC 4, Manual

Page: 23 / 34

English 23
몇 CAUTION
 Safety devices protect the
user and may not be modified
or bypassed.
몇
CAUTION
CAUTION – Please
read the operating in-
structions!
몇
CAUTION
Safety devices protect the user and must not be modi-
fied or bypassed.
The pressure controller keeps the boiler pressure dur-
ing the operation as constant as possible. The heating
is turned off if the maximum operating pressure of 4 bar
is reached in the boiler and is reactivated in case of a
pressure drop in the boiler due to steam tapping.
If, in case of a malfunction, there is no water in the boil-
er, the temperature in the boiler rises. The boiler ther-
mostat turns off the heating. Once the boiler is filled,
normal operation can continue.
The safety thermostat turns off the appliance if the boiler
thermostat and the pressure controller fails and the ap-
pliance overheats in case of a malfunction.
Please contact your local KÄRCHER customer service
to arrange for the reset of the safety thermostat.
The maintenance lock acts as a pressure control valve
at the same time. It seals the boiler against the steam
pressure that builds up in the boiler.
If the pressure controller is defect and the steam pres-
sure in the boiler rises, the pressure control valve, and
steam is emitted through the maintenance lock to the
outside.
Please contact your local KÄRCHER customer service
before you put the appliance into operation again.
Safety Devices
Symbols on the machine
Danger of scalding by
steam!
Safety Devices
Pressure controller
Boiler thermostat
Safety thermostat
Maintenance lock