Appendix
0020200965_02 ENERGY ..s 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 fault clearance key. If the fault
persists and you have pressed the
fault clearance key once more,
a burner anti-cycling time of 45
minutes is automatically activated.
The display shows S.54. If the
fault persists, consult a competent
person.
Hot water gener-
ation functioning
correctly; heating
does not start up
The external controller is not set cor-
rectly.
Set the external controller cor-
rectly (→ Controller operating in-
structions).
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