Fault
Inadequate cleaning efficien-
cy
High-pressure pump does
not reach pressure
The pressure gauge pointer
of the high-pressure pump vi-
brates strongly
The high-pressure pump
safety valve opens
Too little water or no water
coming out of the nozzles
Water continues coming out
of the nozzles after washing
Inadequate drying
The wheel washing brush
does not rotate
The wheel washing brush ex-
tends slowly or not at all
The wheel washing brush ex-
tends at the wrong position
The brushes become dirty
quickly
The undercarriage wash noz-
zle pipes pivot too slowly/too
quickly or not at all
The system cannot be
switched on
44
Faults that are not displayed
Cause
No cleaning agent or insufficient
cleaning agent
No air pressure or insufficient air
pressure in the supply line
Worn brushes
Suction-side pipeline system leak-
ing.
Water shortage
Pump sucking air
Pressure tank defective
Clogged washing bay nozzles
Hose or high-pressure valves
clogged
Dirt trap clogged
Insufficient water pressure
Nozzle clogged
Air in the centrifugal pump
Solenoid valve or supply line
clogged
Dirty solenoid valve
Too little or too much drying aid
Incorrect drying aid
No air pressure or inadequate air
pressure
The motor circuit breaker in the
control cabinet has triggered
Contact pressure too high
No air pressure or inadequate air
pressure
Dirty light sensors
Shampoo dosage too low
No air pressure or inadequate air
pressure
Pivoting unit heavily soiled
Chokes incorrectly adjusted
Power supply fault
Rectification
Check the cleaning agent filling level and
refill if necessary, vent the dosing pump.
Check the air pressure and adjust if nec-
essary (0.6 MPa (6 bar) at the mainte-
nance unit pressure gauge).
Clean the cleaning agent intake filter,
check the cleaning agent pipes for dam-
age.
Check the brushes and replace if neces-
sary.
Check the screw connections and hos-
es.
Eliminate water shortage.
Check suction line.
Replace pressure tank.
Check, clean, replace nozzles.
Remove clog.
Clean the dirt trap
Check the water supply pressure and
pumps
Clean the nozzles with compressed air
Venting the centrifugal pump by loosen-
ing the bleed screw
Check the solenoid valves and supply
lines (water and electricity) and repair if
necessary
Clean the solenoid valves
Increase or reduce the dosage
Check the cleaning agent filling level
Clean the intake filter
Vent the dosing pump
Use original drying agent from Kärcher
Check that the drying blower is working
correctly
Check the motor circuit breaker in the
control cabinet
Reduce the contact pressure at the
wheel wash pressure reducer
Check the air pressure and adjust if nec-
essary
Increase the contact pressure at the
wheel wash pressure reducer
Clean the light sensors and check the
settings if necessary
Adjust the shampoo dosage
Check the water volume and adjust if
necessary
Check the air pressure in the supply line
and adjust if necessary
Clean the pivoting unit
Re-adjust the chokes
Ensure a fault-free power supply as
specified in the connection values
English
Person responsible
Operator
Operator, Customer
Service
Customer Service
Operator
Customer Service
Operator
Customer Service
Operator
Operator
Operator, Customer
Service
Operator
Operator
Operator, Customer
Service
Operator, qualified
electrician
Capítulos
