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Yes done that i suspect the recon board is faulty sending it back and have ordered another one. Thank you. Yes the radiators are getting hot am changing the pcb suspect autofroststat.

The boiler lights and runs continually with the boiler stat in off position. It runs till turned off.

This is original manual.

The boards come complete there is no swappable parts. Thank you

Sorry but no programmer on this model and no external thermostat. Thanks for your input.

This is lighting and continually running. Thanks for your suggestion.

Hi yes but nothing appears to cover this problem, thank you for your reply.

Thank you

Hi thank you for letting me join. I am a retired electrical engineer mainly industrial plant fault finding and repair.

Had a problem during the winter with the flow turbine sensor freezing and water leak. Replaced the flow sensor the boiler now starts to fire up with out dhw or ch being called for. After it lights the reset flashes fast. i replaced the pcb with a recondition one but the fault is the same. I...