constant boiler firing

[Leo21]

No need to touch the boiler to test motorised valves Leo.:grouphug:

Really? It's more advising someone who thinks they can check a motorised valve with a volt pen!

 

[Chalked]

Really? It's more advising someone who thinks they can check a motorised valve with a volt pen!

I know what you mean. But the question was specifically gas safe.

 

[Dotty]

Guys, I've a sneaking suspicion that it'll be an oiler....

 

[DaveyHep]

If its an older installation it might just be short cycling.
i.e. there's no electrical connection between the programmer and the boiler itself and the boiler just turns on and off as required to keep itself up to temp.
Mine does this but can't be arsed fixing it because it keeps the boiler room warm & dry.