Maintenance And Care; Spare Parts; Troubleshooting - Kärcher K 3.700 Originalbetriebsanleitung

Maintenance and care

Danger
Turn off the appliance and remove the
mains plug prior to any care and mainte-
nance work.
Maintenance
The appliance is maintenance-free.
Prior to longer periods of storage, e.g. in
the winter:
 Completely drain all water from the ap-
pliance:
(for a description, see section on "Frost
protection")
Illustration
 Pull out the sieve in the water connec-
tion using flat-nose pliers and clean un-
der running water.

Spare parts

Use only original KÄRCHER spare parts.
You will find a list of spare parts at the end
of these operating instructions.

Troubleshooting

You can rectify minor faults yourself with
the help of the following overview.
If in doubt, please consult the authorized
customer service.
Danger
Turn off the appliance and remove the
mains plug prior to any care and mainte-
nance work.
Repair works may only be performed by the
authorized customer service.
Appliance is not running
 Pull on the lever of the trigger gun; the
device will switch on.
 Check whether the voltage indicated on
the type plate corresponds to the volt-
age of the mains supply.
 Check the mains connection cable for
damages.
Care
Pressure does not build up in the
appliance
 Check setting at the spray lance.
 Remove air from appliance before oper-
ation.
Switch on the appliance without con-
nection the HP hose (max. 2 minutes)
and run it until the water discharging
from the HP outlet is free of bubbles.
Switch off appliance and reconnect HP
hose.
 Check the water supply.
 Pull out the sieve in the water connec-
tion using flat-nose pliers and clean un-
der running water.
Appliance does not start, motor hums
Cause: Voltage reduction due to weak
mains supply or when using an extension
cable.
 When switching on, first pull the lever of
the trigger gun and then switch the ap-
pliance switch to "I/ON".
Strong pressure fluctuations
 Clean high-pressure nozzle: Remove
dirt and debris from the nozzle bore, us-
ing a needle and rinse through with wa-
ter from the front.
 Check water flow quantity.
Appliance is leaking
 Slight leakage from the appliance pump
is normal. If the leakage increases con-
tact the authorized customer service.
No detergent infeed
 Use spray lance with pressure regula-
tion (Vario Power).
Turn the spray lance to "Mix" position.
 Check the settings at the dosage regu-
lator for detergent.
 Check the detergent suction hose for
kinks.
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