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English
7 Service and maintenance
Every technical appliance requires regular service and maintenance work to maintain correct
functioning.
I
CAUTION!
Drinking water is a foodstuff
Hygienic care when handling the filter system should
therefore be a matter of course. Clean the outside of
the filter system regularly with a damp cloth and work
cleanly when replacing the filter cartridge. Avoid using
corrosive chemicals and cleaning agents.
Check for leaks
Daily
Check the pressure hoses
Regular check for breaks and pinch points. Broken
hoses must be replaced.
Break in operation
After a break in operation exceeding two days, the filter
cartridge must be flushed with a minimum of 4–5 litres of
water.
Replace filter cartridge
After 12 months at the latest (regardless of the residual
capacity); after a shutdown period of 4 weeks or more
Replace filter head
After 5 to 10 years
Replace pressure hoses
After 5 years
f
Failure to respect the filter replacement intervals may cause damage to the downstream
appliances.
f
Failure to replace the filter head or the hoses can cause property damage.
Fault
Cause
Troubleshooting
Filtered water cannot
be drawn
Water intake or other check
valves closed
Test check valves and open
if necessary
Filter not fully screwed into
the filter head
Unscrew filter by ½ rotation and reinsert as far as
it will go (see Section 6.9)
Filter head fitted incorrectly
Check flow direction (direction of
arrow on filter head) and reverse
if necessary (see Section 6.5.2)
Low water flow
System pressure is too low
Check system pressure (see Section 6.2)
Aquastop in filter head
leaking when filter
cartridge is removed
Foreign particles deposited
in Aquastop
Flush system with built-in filter
(see Section 6.8)
Threaded connection
leaking
Faulty seal
Check seal, replace if necessary
Air bubbles
Not completely bled
Repeat the bleeding procedure (see Section 6.8)
Water is milky/white
in colour
Process-related formation
of carbonic acid that escape-
sas small white bubbles
Cloudiness disappears after
approx. 5 min.
Heating element,
boiler in the appliance
furs up too quickly
Incorrect bypass setting,
filter capacity exceeded,
filter too small
Check carbonate hardness, bypass
setting and filter capacity, fit new
filter cartridge if necessary
8 Troubleshooting
