16
GB
If the fault cannot be rectified using these notes, please contact a specialist firm or our
Customer Service.
Trouble-shooting
Cause
Dirty filter element
Backwash element does not
reach final position due to coarse
dirt particles
Settling and/or wear of the
sealing elements
Fault
Water pressure in system has
dropped considerably;
Water pressure drops
consider-ably when water is
bled (by more than 35% of the
static pressure)
Flushing water outlet cannot be
closed
Water pressure rises above the
setpoint.
Solution
Carry out backwash
Fully open and close turning
knob;
repeat backwash several
times
Re-adjust back pressure
(see Startup)
If the pressure continues to
rise the valve insert (
11
)
must be replaced
