Quality Of The Heating System Water - Buderus GB162 User Instructions

repair it, call a trained service technician.
Force or attempted repair may result in a
fire or an explosion.
– When the vent system is blocked, this
boiler will shut off automatically with code
'3C'. Immediately call a trained service
technician to inspect and reset the boiler.
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Quality of the heating system water

Use only untreated tap water when filling or
topping up the heating system. The use of
unsuitable heating system water will lead to
build-ups of sludge and corrosion, which can
in turn result in the malfunctioning of the boiler
and damage to the heat exchanger.
DO NOT treat the water with products such as
pH-adjusting substances (chemical additives)
and antifreeze or water softeners.
For your safety
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