Thanks for the advice so far, I've also phoned a plumber at random from google, he reckons the pumps gone too.
Just out of interest, has anyone had a new boiler installed recently ? How much is this likely to set me back ?
Had mine replaced 2 years ago, got quoted 2.4k by British gas, used their spec, bought one myself and got a local plumber cost me £1700. You can go cheaper but you get what you pay for, even at cheapest end expect to pay £1200 +