replaced three port valve

[cherryb]

Hi new to this so here goes,
just replaced a three port valve on a vented system, did all the checks and everything was ok, but now seem to have a problem with rads over heating mainly the bathroom and back bedroom. Have bled the rads again and got more air from the system anyone with any ideas??? also in the living room have three rads but only one is working but this was happening before changing the valve. system has 13 rads on it in total.

cheers ken

 

[cherryb]

There's only one trv on the bathroom rad. which is one of the rads that gets really hot. there's also a lot of black sludge in the water??
forgot to mention it is micro bore pipe work. when the system first started up all the rads were ok, except the two in the living room which did not work before,

 

[cherryb]

thanks to everyone for there help much appreciated

ken

 

[cherryb]

Quick update to this problem, took one of the rads not working off, then flushed the system using the lockshield loads of crap came out, once flushed re balanced system, put in the fernox and system is working top knoch. thanks to everyone

ken