Im just trying to find out ideas before I call him back as it had been fine for 3 years when a new fan was fitted so I don't know if this was deliberate then he comes back and says its the pub when it's not
Had the boiler serviced after a few hours stopped working reset it few hours later stopped again removed the cover and combustion cover started up working fine replaced combustion cover then boiler cuts out intermittently then stops remove cover again working fine fans working any ideas