Fault Display; Checking And Acknowledging Faults - Viessmann VITOLADENS333-F Service Instructions Manual

Fault display

Fault display layout
A Fault display
B Fault symbol
The red fault indicator flashes for
every fault.
A fault in the burner control unit
causes the display to show "E".
The display flashes "Fault" if a fault
message is issued

Checking and acknowledging faults

Note
If an acknowledged fault is not
removed, the fault message will be re-
displayed the following day at
07:00 h.
Press the following keys:
1. c for the current fault.
C Fault number
D Fault code
Plain text fault displays:
Burner control unit
Outside temperature sensor
Flow sensor
Boiler sensor
Mixed flow sensor
Cylinder sensor
Flue gas sensor
Room temperature sensor
Remote control
Subscriber fault
2. a/b for further fault messages.
3. d All fault messages are
acknowledged simulta-
neously, the fault display
will be deleted and the red
fault indicator continues to
flash.
Troubleshooting
67