Kärcher SB MU Manual Del Usuario página 72

Fault Possible cause
RO Pump does Buffer tank for permeate is full
not start
Level sensor "Buffer container full" defective
Start-up time of the control has not yet been
completed
Pressure switch for water scarcity is defective Check pressure switch; replace it, if required.
No softened water is coming from the base ex-
changer
Regeneration of the base exchanger is incom-
plete
RO pump contin- Fine filter or active carbon filter dirty
uously goes on
and off
RO pump starts Too low mains water pressure
only after several
rinsing cycles
Fine filter or active carbon filter dirty
Permeate output Water inlet temperature is too low
is too low; buffer
tank of permeate
Operating pressure is too low
is often empty
There are calcium or mineral deposits on the
filter surface of the RO membrane.
Level switch Buffer tank is "full" is defective
There are bacteria or algae deposits on the fil-
ter surface of the RO membrane.
There are stains The mineral content of the softened water is
on the car paint too high
during Top Care
RO membrane has ruptured; defective sealing Replace washer or membrane. Check conductiv-
(permeate has
not been ade-
quately deminer-
Mixing of permeate and softened water
alised)
72
Remedy
Wait until the permeate is consumed.
Check level switch.
Wait.
Check the base exchanger.
Add salt, add water and wait for brine formation
(approx. 2 hours); start regeneration, check the
base exchanger, if required.
Check filter; replace the filter inlay, if required
Check mains water supply; open the inlet valve
fully, if required.
Check filter; replace the filter inlay, if required
Measure the temperature of the softened water
and compare it with the technical data.
Reset the operating pressure.
Decalcify the membrane; replace it, if necessary
Check level switch.
Rinse the membrane thoroughly for a long time;
replace it if necessary. In future remember: Water
is of potable quality; avoid long idling periods.
Check conductivity of softened water.
ity
Comparison of conductivity of the permeate from
the spray pipe and water from the buffer tank of
permeate.
34
-
EN
By whom
Operator
Customer
Service
Operator
Customer
Service
Operator/
Customer
Service
Operator/
Customer
Service
Operator
Operator
Customer
Service
Operator
Customer
Service
Customer
Service
Customer
Service
Customer
Service
Customer
Service
Customer
Service
Customer
Service