Troubleshooting – Karcher K 5.20 M User Manual
Page 9
 
English
9
You can rectify minor faults yourself with 
the help of the following overview. 
If in doubt, please consult the authorized 
customer service.
ƽ
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.
Î
Check whether the voltage indicated on 
the type plate corresponds to the volt-
age of the mains supply.
Î
Check the mains connection cable for 
damages.
Î
Check setting at the spray lance.
Î
Appliance ventilation: Switch the appli-
ance on with the high-pressure hose 
detached and operate until the water 
flows through the high-pressure con-
nection without bubbles. Switch off ap-
pliance and reconnect high-pressure 
hose.
Î
Check the water supply.
Î
Pull out the sieve in the water connec-
tion using flat-nose pliers and clean un-
der running water.
Î
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.
Î
Check water flow quantity.
Î
Slight leakage from the appliance pump 
is normal. If the leakage increases con-
tact the authorized customer service.
Î
Use spray lance with pressure regula-
tion (Vario Power).
Turn the spray lance to "Mix" position.
Î
Clean the detergent suction hose filter.
Î
Check the detergent suction hose for 
kinks.
Troubleshooting
Appliance is not running
Pressure does not build up in the 
appliance
Strong pressure fluctuations
Appliance is leaking
No detergent infeed