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so if its the motor thats gone, how easy is it to replace?

deffo seems to be the motorised switch that is the issue. i took the cover off and have discovered that when in manual the burner fires and then the gearing seems to slip back just a notch or two which then disconnects the contacts and turns it off. i can hold it in place with a screwdriver an...

model of valve seems to be v4073A1039 if that's any use. google does seem to agree its a 3 way. my mistake. just turn heating on direct again an boiler now fires for about 5 mins then turns itself off again!

evening, been having a bit of an issue with my CH the last couple of days. i have plenty of hot water but no CH. i have a glow worm Micron 50ff, about 7 years old, no problems before now. was checked by engineer about 6 months ago. when CH turned directly on boiler does not fire at...