thanks for that.how do i get rid of an air lock? Also if i bleed the rads ive noticed they need bleeding agin after a short space of time. can the system be drawing in air?
Thanks so much for supper quick replies. 'soinning' should read spinning. No trv,s its an old system. sorry to sound thick but i dont know anything about a bypass. if it is an air lock how do I get rid? you can hear the pump changing speed if I adjust it so i feel it isnt the problem? what do...
Hi, I have a myson apollo that has a switch with high and low. when on low (30k btu) it runs smooth, when on high (60k btu) it runs smooth for between 15 and 20 minutes than sounds like its going to take off. banging and clanking until it eventually turns off. The pump is working and soinning...