3. Set the current date with a/b. 4. Confirm with d.
Changing the language at the control unit
1. Press c.
The display shows "Select heating
circuit".
2. Press d.
3. After approx. 4 s press c.
4. Select the required language with
b.
5. Confirm with d.
Function sequence and possible faults
For further details regarding faults, see page 68.
Display screen Measures
Control unit is-
sues heat de-
mand
No
Increase set
value and ensure
heat is drawn off
Yes
Oil pre-heating
starts
No
after approx. 10
min
Check the oil pre-
heater, cables
and plug-in con-
nections
Fault
E6
Yes
The fan starts
after max. 10 min
No Fault
Check the oil pre-
heater, fan,
cables and plug-
in connections
(the oil preheater
has not switched
through; the tem-
perature is not
achieved)
F9
Further details regarding the individual steps (cont.)
10
Initial start-up, inspection, maintenance
5692 536 GB
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