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9
Maintenance
All technical equipment requires regular main-
tenance. This should always be undertaken by
specialist staff who will also replace worn parts.
We advise you to conclude a maintenance contract.
Maintenance must be performed once each year,
and twice each year for municipal systems, by a
plumber or the manufacturer.
9.2
Troubleshooting
Fault
Water pressure dropped
considerably in network
Flushing water outlet
does not close
AP only:
Display shows ERR
If the fault cannot be remedied by following these tips, contact our after-sales service department.
Cause
Dirty filter element
Backwash element does not
reach the end position due to
large particles of dirt
Pressure too low
9.1
Replacement of wearing parts
Seals
Backwashing element
Filter element
Groove ring
Lock ring
Hose barb
HT-Connector
Hydraulic tubes
Difference pressure
transducer
Pressure spring
Action
Carry out backwash
Repeat backwash several times
Repeat backwash several times.
Increase pressure
EN
every 3 years
every 6 years
every 6 years
every 6 years
every 6 years
every 9 years
every 9 years
every 9 years
every 9 years
every 12 years
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