Vitotronic 300, GW2B Installation and Service
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When the limits specified in the “Boiler” group have
been reached via coding addresses “1F”, “21” and “23”,
“Service” is displayed and flashes.
Note:
Set code “24:1” and then code “24:0” in the
“Boiler” group if a service is carried out before
“Service” is displayed. The selected service
parameters for hours run and intervals are reset to 0.
Acknowledging a service
Press
OK
to acknowledge a service message.
Note:
The service message is transferred to the menu.
An acknowledged service message that was not
reset reappears the following Monday.
Scanning and Resetting Service Display
Service Scans / Troubleshooting
After a service has been carried out (reset service)
1. Reset code “24:1” to “24:0” in the “Boiler” group.
Note:
If coding address “24” is not reset, “Service”
will be displayed again on the following
Monday.
2. Press
OK
and
simultaneously for approx. 4 sec.
3. “Service
functions”
4. “Service
reset”
Note:
The selected service parameters for hours run and
time interval restart at 0.
Calling up acknowledged maintenance messages
Extended menu:
1.
2. “Service”
Fault Display
Calling up acknowledged fault messages
Extended menu:
1.
2. “Fault”
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
simultaneously for approx. 4 sec.
2. “Fault
history”
3. “Display?”
If there is a fault, the red fault display on the control unit
flashes. “Fault” is displayed and
flashes.
The fault code is displayed with
OK
.
Note:
If a central fault message facility is connected,
this is started.
For an explanation of the fault code, see the chapter
“Fault codes”.
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 menu.
A fault messaging facility, if connected, will
be 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.
