16-11-2013, 09:37 AM
I'm not familiar with your boiler or circulator, but usually there is a small screw for venting and if you remove it with it pump turned OFF, then using a long small screw driver, one can often rotate the impeller very slightly enough to free things up and get it rotaing once again. I've done this several times in the past for neighbours. Its not always very easy to gain access.Best of luck.Ted







