301801 • 1/2021 • H.S.
43 of 48
Operating Instruction
High Pressure Cleaner cold water, mobile
Series 2x2
9 Troubleshoot
ing
Error
Possible cause
Remedying
Authorized
personnel
Pump opera-
tion unstable,
provides no
performance
during
cleaning agent
operation.
External detergent container is
empty or not filled sufficient.
Filter of the detergent
suction hose not inserted to
the bottom of the detergent
container.
Fill or top up (if necessary) the
detergent container with approved
detergent.
Insert the filter of the detergent
suction hose to the bottom of the
detergent container
Trained operator
Device
switched off
during
operation.
Motor of high pressure
cleaner overheated.
Allow motor to cool down, set
device switch into position 0, then
switch on again (into position I).
Trained operator
After further switch-on
attempts, the device does not
return to normal operation.
Contact customer service.
Customer service
Internal control circuits or
components defective.
Replace defective components.
Customer service
No pressure
build-up with
high pressure
cleaner.
High pressure nozzle dirty or
defective.
Clean or replace high pressure
nozzle.
Trained operator
Filter on the connection water
inlet dirty.
Clean the filter, see Section 8.3.2.
Trained operator
Water inflow volume is too
low.
Ensure sufficient water inflow
volume.
Trained operator
Air has been sucked into the
device, water supply or hose.
Vent the device or hoses.
Trained operator
One or more supply lines of
the pump are leaking.
Replace leaking supply lines.
Customer service
Unloader valve contaminated.
Clean the unloader valve.
Customer service
Unloader valve is defective.
Replace defective unloader valve.
Customer service
High pressure pump valves
are dirty or defective.
Clean or replace valves.
Customer service
Cuffs of the high pressure
pump are dirty or defective.
Clean or replace cuffs.
Customer service
Tab. 9 - 1
Troubleshooting table
