Troubleshooting; Fault Display; Checking And Acknowledging Faults - Viessmann Vitoladens 300-C Service Instructions Manual

Troubleshooting

Fault display

Fault display layout
Outside temperature sensor
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 mes-
sage is issued
Fault
Mo 57

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.
60
+
OK
­
°C
C Fault number
D Fault code
Plain text fault displays:
■ Combustion controller
■ Outside temp sensor
■ Supply sensor
■ Boiler sensor
■ Cylinder sensor
■ Flue gas sensor
■ Room temp.sensor
■ Collector sensor
■ Solar DHW sensor
■ Remote control
■ Fault participant
2. a/b for further fault messages.
3. d All fault messages are
acknowledged simultane-
ously, the fault display will be
deleted and the red fault indi-
cator continues to flash.