hw fires on and off

[raz]

i have a worcester combi boiler 35cdi mk2. central heating ok but hw fires on and off and fan runs on off , on off , any ideas welcome


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I have edited your "subject"
hope this is more meaningful.

Mod R
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[Strachan]

May well be the dhw flow turbine, done a few of these on the worcesters with that fault, not expensive and easy to do. Look in your manual for guidance.

 

[scatmanjohn]

May well be the dhw flow turbine, done a few of these on the worcesters with that fault, not expensive and easy to do. Look in your manual for guidance.

35cdi II has a Giannoni type diverter.

I think you are on about the greenstar 35 cdi

 

[Strachan]

appologise