Wahl Bach OTS 5 User Manual page 18

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4. MAINTENANCE
Maintenance
This device does not require any maintenance by the user.
Professional maintenance should always be carried out by
an expert.
If faulty, never try to repair the device yourself.
Please contact the nearest service specialist or the
party that supplied the device originally.
De-scaling
A service inspection should be performed by authorized and qualified technical staff
every year. De-scaling of the device during this inspection is highly recommended, es-
pecially when you live in an area with hard water exceeding 12°dH (German standard
of hardness). Higher water temperature will intensify calcification. It is therefore recom-
mended to set the device at maximum 55°C (energy-saving setting) in areas with ex-
tremely hard water >16°dH.
Cleaning
The housing of the device can simply be cleaned with a damp cloth. Do not use aggres-
sive cleaners or cleaners with a scouring effect!
Legionella prevention
Do not use heated water as drinking water.
After prolonged shutdown of the device for example due to holidays, the device should
be fully heated up to the maximum temperature (tap at minimum flow) before re-using.
It is recommended to flush the pipes for one minute.
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