Changing The Language At The Control Unit; Function Sequence And Possible Faults - Viessmann Vitoladens 300-C Service Instructions Manual

Further details regarding the individual steps

Changing the language at the control unit

Note
When the unit is first taken into operation
the display is in German (default lan-
guage setting):
Select heating circuit (see step 1.)
Heizkreis wählen
1
z
Outside temperature (see step 3.)
Außentemperatur
13
i

Function sequence and possible faults

Control unit
issues heat
demand
Yes
Oil preheating
starts
Commissioning, inspection, maintenance
°C
Display screen
No
after approx.
No 10 min
Fault
E6
(cont.)
Press the following keys:
1. c "Heizkreis wählen" (select
heating circuit) is displayed.
2. d to confirm; wait approx. 4 s.
3. c press this button again,
"Außentemperatur" (outside
temperature) is displayed.
4. b for the required language.
5. d to confirm.
Measures
Increase set value
and ensure heat is
drawn off
Check the oil pre-
heater, cables and
plug-in connectors
11