Malfunctions Of The Ro Control And Metering Pump - Kärcher WATERCLEAN 600 CD Service Handbook

MAINTENANCE
4.5.3

Malfunctions of the RO Control and Metering Pump

Indication Malfunction
Indication of RO Fuse defective
control dark
Short circuit,
general
Solenoid valve
defective
Motor winding
defective
Water level in Pump does not
container is draw in
constant for
days
Pump does not
meter
Table 30
58
Cause Corrective Action
Have replaced by
electrician
Replace defective parts
Replace defective parts
Replace defective parts
Suction line untight Retighten screwed
fittings. Replace
suction line
Suction line Flush or replace
clogged suction line
Crystals, debris in Clean valves
the valves
(metering head)
Membrane torn or Replace membrane
membrane push-
rod torn out
Air in the suction Bleed pump
line and in the
metering head
Lift adjustment a While the pump is
zero running, turn in "+"
direction (adjustment
values, see 3.3.1)
Crystals, debris in Clean valves
the valves
(metering head)
Valves not Check correct line-up of
mounted correctly valves and correct,
if required (direction of
arrow!)
Injection fitting Check direction of flow
blocked and correct, if required,
or eliminate plug
(direction of arrow!)
WTC 600 LP / MP
Chap./
Fig.
ETL,
diagram
in switch
cabinet
ETL
ETL
ETL
4.2
4.2
4.2
Service Handbook 08.2004