Troubleshooting Alarm List - Viessmann PLC VITOCAL 350-HT PRO Service Instructions For Contractors

Troubleshooting
Alarm list
Faults trigger alarms.
If an alarm has been triggered, the
red.
The causes of the fault must be eliminated to ensure
normal operation of the system.
Fig. 22
Each alarm is shown on a separate line.
Current alarms that have not been acknowledged are
highlighted in red.
Acknowledged alarms are highlighted in blue.
Buttons:
■ "Single"/"Multiple"
To select single or multiple alarms
"Acknowl."
■
To reset selected alarms
Note
The alarm cannot be acknowledged if the fault has
not been rectified.
30
For an overview of the fault messages, see page 31.
alarm signal is Launch with
■ Note
Only service level users can delete alarms.
See page 11.
"Delete selected alarms"
Deletes the selected alarms
■ "Delete alarms"
All alarms, including those that have not yet been
acknowledged, are deleted.
!
Please note
Deleting non-acknowledged alarms may
cause malfunctions with the heat pump.
Always acknowledge alarms before deleting
them.