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Viessmann Vitoligno 300C Manual

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Vitoligno 300-C Operating Scanning
Scanning Fault Messages
If any faults have occurred in your heating system, the
symbol “)“ flashes in the display and “Fault” is shown.
The heating contractor uses fault messages to quickly
pinpoint the cause of your boiler’s fault. This can reduce
the time required to resolve the fault and therefore
also your costs.
Make a note of the fault message displayed so you can
advise your heating contractor accordingly. This makes
preparations easier and may save extra travel expenses.
Danger due to unresolved faults in the heating system.
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.
2. Pressing ? calls up information on the heating system
characteristics.
Tips on which measures you can take yourself before
notifying your heating contractor are also displayed.
3. Make a note of the cause of the fault and the fault
code next to it on the right. In the example: “Outdoor
sensor 34” and “Fault O2 probe 91”.
This enables the heating contractor to be better
prepared for the service call and may save additional
travelling costs.
4. If you want to acknowledge the fault message, follow
the instructions in the menu.
The fault message is applied into the menu.
Note: If you have connected alarm equipment to
indicate fault messages (e.g. a buzzer), this
alarm 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 is switched on
again.
Calling up an acknowledged fault message in the standard
menu
1. |/~ for “Fault”
2. d to confirm.
… 39 …


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