Viessmann Vitovalor PT2, Operating Instructions Manual

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38
If faults have occurred on your micro CHP system, this
is indicated on the display with the symbol and
"Fault" . The light bar flashes orange (see chapter
"Starting the micro CHP system").
Tap .
flashes in the footer.
Note
■ If you have connected an alarm to alert you to fault
messages (e.g. a buzzer), this is deactivated when
the fault message is acknowledged.
■ If troubleshooting cannot be carried out until a later
date, the fault message will be displayed again the
following day at 07:00 h. The alarm equipment is
switched on again.
Calling up a fault message
1. Tap on in the footer.
The fault message appears in red in a list.
2. Tap ? to call up information on the micro CHP sys-
tem characteristics.
Tips on measures you can take yourself
before
notifying your heating contractor are displayed.
3. Make a note of the fault number and the cause of
the fault. For example:
F.2 "Short circuit, com-
mon flow temperature sensor" .
This enables the heating contractor to be better
prepared and may save you unnecessary travelling
costs.
4. Notify your heating contractor.
5. Tap to acknowledge the fault.
Danger
If faults are not rectified, they can have life
threatening consequences.
Do not acknowledge fault messages several
times in quick succession. Notify your heating
contractor if a fault recurs. Your heating contrac-
tor will be able to analyse the cause and rectify
the fault.
Note
If more warnings and messages are present, "Faults"
is displayed.
Tap on "Faults"
The fault messages are listed in red.
Reset burner in case of burner fault
If the burner is locked due to a fault, you can reset the
burner.
1. Tap " "
A further note will be displayed.
2. Tap "Reset" .
3. Tap
The burner is reset and will restart.
Danger
If faults are not rectified, they can have life
threatening consequences.
Do not reset the burner several times in quick
succession. Notify your heating contractor if a
fault recurs. Your heating contractor will be able
to analyse the cause and rectify the fault.
Checking help messages
You can call up help messages relating to the displays
and functions.
Tap the following on-screen buttons:
1. to call up the help messages
2. to return to the original display
Checks
Checking fault messages
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