Power Outage; Error Codes - Viessmann AQUAHOME 20-N Installation And Operation Manual

Water softening station
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F. Power outage
G. Error codes
If electrical power to the water softener is lost, the display
screen will turn off but the microprocessor will keep all
settings for several hours. When electrical power is
restored, verify and reset time, if the hour on the display
screen is flashing or incorrect. The preset values of :
water hardness and the hour of activation of the
regeneration process should never be reset unless a
change is desired. Even if the time information
displayed after long period of power interruption is
incorrect the device will still function properly and will
soften water. Incorrect time information will result in the
regeneration process being activated at wrong hour until
the time information is reset to the correct one.
An error code may appear on the display screen
whenever only of the electronic components of the device
malfunctions. If the display screen shows an error code
instead of current time, seek assistance of an authorised
service provider.
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