Lon Connection Error; Restoring The Factory Settings - Viessmann Vitogate 200 Installation And Service Instructions For Contractors

LON connection error

If a LON subscriber (e.g. Vitotronic control unit) fails,
no further data from this subscriber will be transferred
to the KNX/EIB system.

Restoring the factory settings

1. Simultaneously press and hold buttons "T2" and
"T4".
2. Switch the plug-in power supply unit OFF and ON
again.
The KNX/EIB system can display a corresponding
error message if the data point error message has
been assigned for this LON subscriber.
3. Release buttons "T2" and "T4" as soon as the
LEDs flash briefly 3 times.
Troubleshooting
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