DHW only burner fires up & stays on
CH only burner fires up but cycles on & off
how long does the cycle last for?
burner on 10seconds
burner off 2 minutes
burner keeps going on & off?
does this happen for BOTH CH & DHW?
or only DHW?
or only CH?
i need more info in order to narrow down list of possible faults/causes
at the moment could be absolutely anything
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