The Display Appears Dark; The Display Illumination Flashes; Scanning Faults - Viessmann VITOSOLIC 200 Operating Instructions Manual

The display appears dark

Cause
Power failure.
The power distribution MCB (main
domestic MCB) has responded (mains
voltage is not present).

The display illumination flashes

Cause
Solar thermal system fault.

Scanning faults

If any faults have occurred in your solar
thermal system, the display illumination
flashes and "Fault" appears on the
standard display.
30.04.2009 10:59
Tcol 47.7 °C
Tcylb 35.4 °C
Fault
Press the following keys:
1. for the "Main menu".
2. for "Messages".
3. OK to confirm.
4. / for current causes of the fault
Remedy
After power has been restored following
a failure, the solar control unit returns into
operation automatically.
Check the MCB and contact your heating
contractor, if necessary.
Remedy
Scan the fault (see following chapter) and
contact your local heating contractor, if
necessary.
5. Make a note of the cause of the fault.
This enables the heating contractor to
be better prepared for the service call
and may save additional travelling
costs.
6. until the "Main menu"
appears.
Example of a fault message
Cylinder temperature sensor lead bro-
ken
Messages:
Cyl set
! Interruption
>Sensor 2<
What to do if...
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