Scanning And Resetting The "Service" Display - Viessmann VITOTRONIC 300 GW2 Installation And Service Instructions Manual

Scanning service information

Scanning and resetting the "Service" display

Service
MFlue gas temperature
220
Boiler temperature
61
78
When the limit values selected via coding addresses "1F", "21" and "23" (see
page 120) are reached, the "Service" display flashes on the programming unit.
Please note:
If a service is carried out before "Service" is displayed, set the coding address
"24: 1" and then coding address "24: 0".
Press .
Scan the service messages with the
or button.
°C
Press and confirm the display
"Acknowledge: Yes" by pressing
.
Press .
After carrying out maintenance,
reset coding "24: 1" (see page 120)
to "24: 0".
If necessary: After carrying out
maintenance
.
Press
Reset burner hours run, number
of burner starts and fuel
consumption.
.
Press
If necessary: After carrying out
maintenance
and rw simultaneously
Press
for approx. 4 seconds.
Reset "Max. flue gas temp." to
the current value by pressing D.
.
Press
Service scan is activated.
The "Service" display is
extinguished.
Please note:
An acknowledged service
message can be displayed again
by pressing (for approx.
3 seconds).
Service scan is terminated.
If coding address "24" is not
reset, the "Service" display will
re-appear at 07:00 hrs on Monday.
See "Scanning operating status
information" on page 77.
See "Temperatures, boiler coding
cards and scans" on page 74.