Can anyone help? We have just had a Ravenheat CSI85T installed by my works plumber (also came recommended by a friend!). The plumber said the boiler fired up and oheated because the pump had ceased up, so he took it to pieces &"cleaned it". Then the pump started working, the boiler fired up for 5 secs and then cut out. Since then it has not fired up, the plumber is not accepting any responsibility (because the boiler is the problem and not his installation work!) and Ravenheat wont talk to us because we are not corgi reg!!!!Does anyone have any clues?