I moved into a brand new house just before Xmas, which was completed in
June. The Potterton boiler that was installed has now developed an annoying
habit of clicking every second or every few seconds (depending on how high
the gas is) until I switch it off. I suspect this may be something to do
with expanding & contracting metal ... it's been like it for about a week
now (started after 2-3 days of use). Should I be worried or will it settle
down after a month or two ??