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7 Trouble shooting

Error Cause Action

Filtered water cannot be

drawn

Water supply in general is

stopped or a valve is closed

Test all valves and open if necessary

Filter cartridge not screwed

properly into the filter head

Unscrew filter by ½ rotation and reinsert as

far as possible (Section 5.6)

Filter head fitted incorrectly Check flow direction according to the arrow

on the filter head and reverse flow direction

if necessary (Section 5.4)

Low water flow rate System pressure is too low Check system pressure (Section 4.4)

Aquastop in filter head

leaking while filter

cartridge is removed

Particles deposited in Aqua-

stop

Purge/flush filter system with mounted filter

cartridge (Section 5.6.1)

Threaded /screw

connection is leaking

Defective seal Check seal, replace if necessary

Air bubbles System not completely purged Repeat purging/flushing procedure (Section 5.6.1)

Turbid or white water Process-related formation of

small bubbles of carbonic acid

Turbidity vanishes after 5 minutes.

Heating element, boiler

in the appliance not

satisfactorily protected

against lime scale

Incorrect bypass setting, filter

cartridge capacity exceeded,

filter cartridge too small;

change in water hardness from

the water supplier.

Check carbonate hardness, bypass setting

and filter capacity (Section 5.3).

Fit suitable filter cartridge if necessary.

8 Order numbers

Bestell-Nr.

Filter cartridge bestmax SMART 10 FS20G10A00 / 812351

Filter cartridge bestmax SMART 15 FS22G10A00 / 812352

Filter cartridge bestmax SMART 20 FS25G10A00 / 812353

Filter cartridge bestmax SMART 25 FS23G10A00 / 812354

Filter cartridge bestmax SMART 30 FS24G10A00 / 812355

Filter cartridge bestmax SMART 35 FS26G10A00 / 812356

Filter cartridge bestmax SMART 40 FS28G10A00 / 812357

Filter cartridge bestmax SMART 42 FS29G10A00 / 812358

Filter cartridge bestmax SMART 45 FS30G10A00 / 812359

Filter cartridge besthead ST 3/8“ FS00Y90A00 / 812412

Filter cartridge besthead PA 3/8“ FS00Y96A00 / 812414

Filter cartridge besthead PA Ø 8 mm FS00Y95A00 / 812413

Filter cartridge besthead FLEX FS00Z20A00 / 812420

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 and T2 at the end of this installation and operating manual.

Brand	BWT
Model	bestmax SMART Series
Category	Water Filtration Systems
Language	English

BWT bestmax SMART Series User Manual

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BWT bestmax SMART Series Specifications

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