18
Fault Cause Remedy
No pressure builds up in
the device.
The pump is not screwed
on tightly.
Screw the pump on tightly.
O-ring [19] on the pump is
faulty.
Replace the O-ring (Fig. 19).
Diaphragm [20] is defec-
tive.
Replace the diaphragm (Fig.
19).
Liquid ows out of the
pump.
Valve disc [23] dirty or
defective.
Clean or replace the valve disc
(Fig. 21).
Piston pressure gauge
does not indicate any tank
pressure.
Safety valve blows o too
early.
Piston pressure gauge [16]
is defective.
Replace the piston pressure
gauge (Fig. 26).
The nozzle does not spray
even though pressure is
present.
Nozzle [21] or / and lter
[22] is clogged.
Clean the lter (Fig. 24) or/and
nozzle (Fig. 22).
The shut-o valve does not
close.
Liquid emerges without the
lever being activated.
O-rings [24] of the pres-
sure bolt [25] are not
greased / lubricated.
Faulty O-rings [24] or pres-
sure bolt [25].
Grease the O-rings of the
pressure bolt (dismantle shut-
o valve → section „Care and
maintenance“) (Fig. 29)
Replace O-ring or pressure bolt
(Fig. 29).
EN ENGLISH
Faults
Contact address for additional information → see title page.
Use only original spare and accessory parts.
6993140_0223_CLEANER_PROFIPLUS_15Spr.indd 18 14.02.2023 15:17:03
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