37
Calling up a fault message
Danger
Unresolved faults in the heating system repre-
sent a risk
■
If a fault occurs, shut the system down and
make it safe.
■
Contact your heating contractor immediately.
■
Rectify the fault immediately or have a heating
contractor rectify it if necessary.
■
When rectifying the fault, no-one else should
be present in the danger zone around the
heating system.
1. You can call up the cause of the fault with
d
.
Fault
Acknowledge with
Fault O2 probe
Outside temp sensor
91
34
OK
Fig. 31
2. Pressing
?
calls up information on the heating sys-
tem characteristics.
Also provided are tips on which measures you can
take yourself
before
notifying your heating contrac-
tor.
3. Make a note of the cause of the fault and the fault
code shown next to it on the right. In this example:
"Outside sensor 34"
and
"Fault O2 probe 91"
.
This enables the heating contractor to be better pre-
pared for the service call and may save additional
travelling costs.
4. If you want to acknowledge the fault message, fol-
low the instructions in the menu.
The fault message is adopted into the menu.
Boiler water temp
Boiler
48°C
Fault
Heating
Buffer
OK
Continue with
Fig. 32
Note
■
If you have connected signalling equipment to
indicate fault messages (e.g. a buzzer), this sig-
nalling equipment is deactivated when the fault
message is acknowledged.
■
If the fault can only be rectified at a later date, the
fault message is displayed again the next day and
the alarm equipment is switched on again.
Calling up an acknowledged fault message
Press the following keys:
1.
ä
Repeatedly, until the standard menu is dis-
played.
2.
|
/
~
For
"Fault"
.
3.
d
To confirm.
Information call up
Calling up fault messages
(cont.)
5684 987 GB
Summary of Contents for Vitoligno 250-S
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