potterton promax

Hi got a potterton promax 15 he. Pumps with the cylinder in the airing cupboard but boiler is in utility room. So recently I've found in that can hear a loud clunking noise (around the pump I think, not sure) and then the boiler locks out. When I go to the boiler I hear a hissing sound as if...

Hi all, I just bought a Hive V1 system from Toolstation for £60... I know bargain right http://www.toolstation.com/shop/Hea...ntrol+&+Thermostat+Heating+&+Hot+Water/p87054 Anyways Im looking to replace my old timer / programmer (currently fitted to the wall) with the Hive reciever. Also...