I have an Ariston Micro Genus Combi boiler. When it turns on in the morning generally the pressure guage builds up to about 4 bar then the boiler cuts out. I had an engineer in about 6 months ago but as usual the problem didn't show then. He suggested it may be the pump and mentioned something about checking the water pipes to see if they're hot. I can't remember exactly what he said to check though. Anyone have any suggestions ? It is a Wilo Gold pump in the boiler if that helps any.
Thanks, Stephen.
Thanks, Stephen.