14
Problem
Pressure drop
Pressure fluctuations
Motor does not start
when the cleaner is
switched on
Cause
Air in system
High-pressure nozzle
worn
FlexoPowerJet nozzle,
pressure/volume regula-
tor on cleaner or Vario-
Press control knob not
set correctly
Pump draws in air
(possible only during
suction operation)
Insufficient water
Water supply hose too
long or with insufficient
cross-section
Insufficient water due to
clogged water filter
Insufficient water due to
failure to observe
prescribed intake head
Plug is not correctly
inserted, power cut
Mains fuse has tripped
Remedy
Bleed system by actua-
ting the spray gun trigger
several times in quick
succession; if necessary,
operate cleaner briefly
with the high-pressure
hose disconnected.
Replace the high-
pressure nozzle
Set the desired working
pressure
Check the air tightness
of the suction set
Turn on the water tap
Use the prescribed water
supply hose
Clean water filter in the
water connection (never
work without a water
filter!)
See „Starting operation“
(max. suction head 0.5 m)
Have plug, lead and
switch checked and
replaced, if necessary, by
a qualified electrician
Reset the mains fuse
