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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.
9.1
Replacement of wearing parts
Seals
every 3 years
Backwashing element
every 6 years
Filter element
every 6 years
Groove ring
every 6 years
Lock ring
every 6 years
Hose barb
every 9 years
HT-Connector
every 9 years
Hydraulic tubes
every 9 years
Difference pressure
transducer
every 9 years
Pressure spring
every 12 years
9.2
Troubleshooting
Fault
Cause
Action
Water pressure dropped
considerably in network
Dirty filter element
Carry out backwash
Flushing water outlet
does not close
Backwash element does not
reach the end position due to
large particles of dirt
Repeat backwash several times
AP only:
Display shows ERR
Pressure too low
Repeat backwash several times.
Increase pressure
If the fault cannot be remedied by following these tips, contact our after-sales service department.