Appendix
0020300878_00 Energy
7
Operating instructions
15
Fault
Cause
Measure
Product does not
start up:
–
No hot water
–
Heating re-
mains cold
If fault
F.83
is displayed, press the
reset button. If the fault persists
and you have pressed the reset
button once more, a burner anti-
cycling time of 45 minutes is auto-
matically activated. The display
shows
S.54
. If the fault persists,
consult a competent person.
Domestic hot wa-
ter generation
functioning cor-
rectly; heating
does not start up
The external control is not set correctly.
Set the external control correctly
(
→
Control operating instructions).
