Fault Display; Weather-Compensated Control Unit; Constant Temperature Control Unit - Viessmann VITODENS 200-W B2HA Installation And Service Instructions Manual

Troubleshooting

Fault display

Weather-compensated control unit

In the event of a fault, red fault indicator
" " flashes on the display and "Fault" is shown.
A
R
bar
Fig. 45
Press OK to display the fault code.
For an explanation of the fault code, see the following
pages.
For some faults, the type of fault is also displayed in
plain text.
Acknowledging a fault
Follow the instructions on the display.
Note
■ The fault message is transferred to the standard
menu.
■ Any fault message facility connected will be switched
off.
If an acknowledged fault is not remedied, the fault
■
message will be redisplayed the following day and
the fault message facility restarted.

Constant temperature control unit

In the event of a fault, red fault indicator
The 2-digit fault code and (subject to the type of fault)
" " or " " flash on the programming unit display.
A
R
bar
Fig. 46
Other current faults can be displayed with / . For an
explanation of the fault codes, see the following pages.
86
flashes. Calling up acknowledged faults
A
Select "Fault" in the standard menu. Current faults will
be listed.
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.
1. Press OK and
2. "Fault history"
3. "Display?"
Deleting the fault history
1. Press OK and
2. "Fault history"
3. "Delete?"
flashes.
A
1
Fig. 47
Acknowledging a fault
Press OK. The default display reappears on the dis-
play screen.
Any fault message facility connected will be switched
off.
simultaneously for approx. 4 s.
å
simultaneously for approx. 4 s.
å
Example: Fault message "50"
ã
5 0