Trouble Shooting; Order Numbers; Tables Of Filter Capacities And Bypass Settings - BWT bestmax Einbau- Und Bedienungsanleitung

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7 Trouble shooting

Error
Filtered water cannot be
drawn
Low water flow rate
Aquastop in filter head
leaking while filter
cartridge is removed
Threaded /screw
connection is leaking
Air bubbles
Turbid or white water
Heating element, boiler
in the appliance not
satisfactorily protected
against lime scale

8 Order numbers

Filter cartridge bestmax X
Filter cartridge bestmax S
Filter cartridge bestmax V
Filter cartridge bestmax M
Filter cartridge bestmax L
Filter cartridge bestmax XL
Filter cartridge bestmax 2XL
Filter head besthead ST 3/8"
Filter head besthead PA 3/8"
Filter head besthead PA Ø 8 mm
Filter head besthead FLEX

9 Tables of filter capacities and bypass settings

The filter capacities and bypass setting depending on the carbonate hardness of the tap water are
listed in Tables T1 to T4 at the end of this installation and operating manual.
Cause
Water supply in general is
stopped or a valve is closed
Filter cartridge not screwed
properly into the filter head
Filter head fitted incorrectly
System pressure is too low
Particles deposited in Aqua­
stop
Defective seal
System not completely purged Repeat purging/flushing procedure
Process­related formation of
small bubbles of carbonic acid
Incorrect bypass setting, filter
cartridge capacity exceeded,
filter cartridge too small;
change in water hardness from
the water supplier.
Action
Test all valves and open if necessary
Unscrew filter by ½ rotation and reinsert as
far as possible
(Section 5.6)
Check flow direction according to the arrow
on the filter head and reverse flow direction
if necessary
(Section 5.4)
Check system pressure
Purge/flush filter system with mounted filter
cartridge
(Section 5.6.1)
Check seal, replace if necessary
Turbidity vanishes after 5 minutes.
Check carbonate hardness,
bypass setting and filter capacity.
Fit suitable filter cartridge if necessary.
Order Number
FS20I00A00 / 812110
FS22I00A00 / 812111
FS23I00A00 / 812115
FS24I00A00 / 812112
FS26I00A00 / 812113
FS28I00A00 / 812114
FS30I00A00 / 812116
FS00Y90A00 / 812412
FS00Y96A00 / 812414
FS00Y95A00 / 812413
FS00Z20A00 / 812420
(Section 4.4)
(Section 5.6.1)