Hi
I have a problem with my central heating system in that it makes loud
noises in the pipes. Almost sounds like a big kettle boiling, but seems
to be the pipes near the boiler vibrating. Only started recently and
nothing has changed. About 2 months ago changed boiler fan, but it
didn't start then.
Have timed it and it seems to be noisy for about 3 minutes followed by
1 minute of quiet running. Not sudden on/off of noise but a gradual
build up/calm down.
Another problem is that often the boiler cuts out (overheat light) and
you have to turn it off/turn it on again.
Its a 10 year old baxi.
Could it need descaling ?
If so, is the only solution a corrosive descaler in the system ?
Cheers

wrote in message
ups.com...
Hi
I have a problem with my central heating system in that it makes loud
noises in the pipes. Almost sounds like a big kettle boiling, but seems
to be the pipes near the boiler vibrating. Only started recently and
nothing has changed. About 2 months ago changed boiler fan, but it
didn't start then.
Have timed it and it seems to be noisy for about 3 minutes followed by
1 minute of quiet running. Not sudden on/off of noise but a gradual
build up/calm down.
Another problem is that often the boiler cuts out (overheat light) and
you have to turn it off/turn it on again.
Its a 10 year old baxi.
Could it need descaling ?
If so, is the only solution a corrosive descaler in the system ?
Cheers


It could be that your lockshield valves need opening a bit to increase the
flow.



John