More help please. No answers to my banging pipes problem yet, would like to add is it normall for the cold feed pipe from the expansion tank to be red hot from tank to inlet ubove air seperator where join is 22mil feed? Also expansion pipe can not touch because of heat? Apprieciate help.
sounds likely that either the pipe is blocked in and around the air seperator or the pump has seized. Is the water in the small tank likely in the loft full of water? if so its more of an indication of the blockage. Ideally draining the system from the lowest point will confirm how bad blockage is, after water stops flowing if tank is still full then you have your answer. If drain works well and all empties then pump could be faulty
andy, August 2008
things to check
1. circ. pump working
2. temp. setting on boiler not to high
3 thermostat working
4. is there water in the expansion tank
