Troubleshooting Fault Display; Acknowledging A Fault Display; Calling Up Acknowledged Fault Messages; Calling Up Fault Codes From The Fault Memory (Fault History) - Viessmann VITOTRONIC 200 Installation And Service Instructions Manual

Troubleshooting
Fault display
In the event of a fault, the red fault indicator on the
control unit flashes. "Fault" is shown on the display
and flashes.
Press OK to display the fault code.
Note
If a central fault message facility is connected, this is
started.

Acknowledging a fault display

Follow the instructions on the display.

Calling up acknowledged fault messages

1.

Calling up fault codes from the fault memory (fault history)

The 10 most recent faults (including those remedied)
are saved and can be called up.
Faults are sorted by date.
Note
The list can be deleted.

Fault messages

Displayed fault System characteristics
code
0F Control mode
10 Operates as if the outside
temperature was 0 °C.
18 Operates as if the outside
temperature was 0 °C.
60
For an explanation of the fault code see chapter "Fault
codes".
For some faults, the type of fault is also displayed in
plain text.
Note
The fault message is transferred to the menu.
The central fault message facility, if connected, is
switched off.
If an acknowledged fault is not remedied, the fault
message will be re-displayed the following day and the
fault message facility restarted.
2. "Fault"
Press OK and
Fault history
Display?
Delete?
Select with
Fig.35
Cause
Service
"0F" is only displayed in
the fault history.
Short circuit, outside tem-
perature sensor
Lead break, outside tem-
perature sensor
simultaneously for approx. 4 s.
(
Measures
Service the appliance.
Note
After servicing, select code "24:0".
Check outside temperature sensor
(see page 85).
Check outside temperature sensor
(see page 85).