Recent content by Mangizmo

Replaced the 3 port valve and BINGO, thermostat clicks off, 15 second delay, boiler fires down, room cools, click.....15 second delay, boiler fires up all as expected so all fixed, thanks to all :lol: :lol: :lol:

Not sure who actually made it, its a Plumb Centre branded valve looks very similar to yours

Hi Mick again, where is the drain point on that photo, any idea? Vaughan

Thanks for reply, I reckon its sticking because it has been fine in the past, watching it I can see that sometimes it doesn't close when the thermostat is moved, the motor seems to stall, giving it a nudge encourages it to move, so I think it is that valve

Photos here: //www.diynot.com/network/user_album_update.php?album_id=20402

have bought a 3 port valve to replace a faulty unit on my system, need to drain it, anyone who could please see this post with photos and see if you can help me Thanks //www.diynot.com/forums/plumbing/central-heating-problem-picshow-does-this-system-work.400157/ PHOTOS HERE...

Hi guys, it is definitely the 3 port valve that is faulty, sticking open, so I have bought another to fit and need to drain the system, can anybody give me a step by step looking at the photos and advise me on how to drain and retop this system ?, I have installed and filled/drained a combi...

Great that's very helpful thanks, I will go for the 3 port valve head then and see if that fixes it as others have suggested, I can see that could cause the symptoms I have, I could as you say replace the 3 port for another 2 port, but it would be quicker and easier for me to get an identical 3...

Yes has worked ok before, the 3 port head is a "plumb Centre" branded EHE0200157, the 2 port is a Honywell V4043H1056, which do you think is most likely faulty from the symptoms ?

OK its making some sense now , why have I got 2 valves? I can see the point of the 3 way but the additional 2 way, whats that for, what can I do away with ?

I take it that the 3 port motorised valve is the two silver aluminium boxes at the bottom of the photograph ?

Have I got this right.....water heated from potterton boiler pumped around coil in bottom of heatrae sadia megaflow unvented cylinder, the central heating system draws water via a motorised valve which circulates around the rads and back to the megaflow, if the valve doesn't close off properly...

Hi First post here have a problem with this system, I cant actually work out how it works as I have only had experience of Combi boilers. My problem is as follows, hot water all ok, the radiators stayed hot even with the thermostat (a basic Honeywell in the living room) set to 0 I...