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well i checked the junction box and found two broken wires trimmed them back and put them back in. no difference!! i am trying to make sure that the wiring is correct and that the previous tenants have not fiddled as they had done with some light switches and left them hanging off the walls...

its pretty much any time. i have the instruction book and i get flashing light combinations that are not listed i cant remember now exactly i will have to check again the next time i am there. i have maneged to get wiring diagrams and spec on the 4073a honeywell y valve and i am going...

hi Chris further to your post on this subject the link to the honeywell page seems to be dead any where i can get more details on this valve? i have one a few years old and i am suspicious that it is causing problems with my system. i am part way throu checking all wiring but need...

hi I have a bolier potterton suprima 50L and it is not working properly. not firing up reliably, and getting worse. I have checked the junction box and checked all wiring - programmer to junction box, tank stat room stat and honeywell 4073 3 position valve. one thing that is strange...