50
Troubleshooting:
8
MAINTENANCE
8.1
CLEANING
Substances with a distinct polar character, e.g. alcohol, concentrated mineral acids, formic acid, phenol, m-
cresol, tetrahydrofuran, pyridine, dimethylformamide and mixtures of chloroform and methanol must not
be in the cleaning water.
These substances can chemically attack the plastic parts resulting in embrittlement and even breakage.
Therefore do not use these types of cleaner!
9
MAINTENANCE
To maintain your warranty entitlement, perform annual checks to ensure that there are no leaks and that
desalination or softening is functioning correctly.
It is desirable that the regular maintenance work and the supply of consumables or wear material, etc. is
performed by a technical service provider or the factory customer service team.
Fault
Cause
Remedy
There are leaks.
The installer or the closest customer service
point must be informed immediately!
Bottle does not deliv-
er the required water
hardness.
Water hardness slowly increases
once the capacity has been ex-
hausted.
Replace bottle (see chapter 6.7).
To clean the housing use only clear drinking water.
Standard domestic all purpose cleaners and glass cleaners, solvents, solvent va-
pours, varnish and alcohol containing cleaning agents lead to embrittlement and
severe surface crack formation up to the point where plastic parts break.
When working on the heating system there is a risk of scalding!
