I'm getting a loud boom sound from my boiler about every 5mins which blows itself out, then restarts, and it's driving me mad!!
Someone told me it was limescale so I bought some stuff from B&Q and followed the instructions, that was Sunday and it's still doing it!!
The pump seems to be nice and free and today I took the day off work and gave the boiler a general clean/service, but it's still the same?
Can someone please help me, it's doing my head in now!! :(
