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Swich on heating the pilot lights up then the boiler starts making banging noises the pressure gauge starts fluctuating and the boiler cuts out

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Hi you could be drawing air into the system try bleeding the system check all seals and if ok tighten all connections

Posted on Nov 17, 2009

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Posted on Jan 02, 2017

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I have a ravenheat 820/20(t) boiler and the pilot will not say alight, I have 20mV from the thermocouple(through the safety switch) and its had a new gas valve fitted(good earth continuity).The heating system is holding pressure at 1.2 bar.
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1 Answer

Heating pressure gauge goes up


yes tami
there should be a pressure rellief valve fitted.
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1 Answer

Boiler kept shutting down.Re-starts but drops not keeping pilot.


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