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Thank you both, will replace the siren battery and update the result here. I believe it has the original battery still which originates to early 2019 so approx 3.5 years

Hello, Im getting the following warning on the display of my Pyronix Enforcer alarm - "SIREN WIRLS SUPERVN F1" followed by "SIREN WIRELESS POLL FAIL" It may be the link between the wall box outside and the control panel but its not flagging up the Siren battery as being low ... Thanks

Two final questions before I begin tomorrow morning! When it comes to draining down the system do I need to lock the HW zone valve open manually in order to drain the primary circuit ? The CH circuit Im familiar with. Secondly if I rotate the pump forwards through ninety degrees that should...

One question, the fact that the pump is on the return circuit, I assume the Auto ByPass Valve direction is still from Flow to Return and not the opposite way around ?

Good to know, I’ll get an auto bypass valve in that case whilst I’m in that spacious area

Thanks Madrab, would you still me inclined to leave that gate valve as is ?

Jeff, it’s piped to that one rad via those two highlighted pipes as all the others are on the main CH loop beyond the zone valves. Not much room above the boiler but I’m guessing if I could somehow Tee off the main CH circuit into those pipes feeding that one rad that ‘should’ solve it ?

Hope this shows it much clearer than I can explain it … hopefully it lets you see the two pipes in question that go soley to the bathroom rad causing the issue in question

Thanks Madrab. I’ll put a bit of hi viz tape on the two pipes in question and upload another photo

Madrab. As you will see other than being a cramped space with the red gate valve in question as you predicted, the pump as others have noted on a previous post, is on the return circuit And that the pump is at the wrong angle …

The boiler is a potterton suprema 80L. I’ve gone through the manual online and don’t see any reference to a bypass valve but maybe those familiar with the boiler will know better

The boiler is a potterton suprema 80L. I’ve gone through the manual online and don’t see any reference to a bypass valve but maybe those familiar with the boiler will know better

Thank you both, Madrab Its an S Plan system with the two separate 2 port motorized valves, one for CH and one for domestic HW.

A close look at that photo shows a 15mm flow and return pipe going to the bathroom radiator and not Tee-ing off the CH loop. Think that confirms your suspicions ‘Oldbutnotdead’ Is the solution therefore to join the bathroom pipework into the main CH loop after the zone valves and have all rads...

Thank you, it is the bathroom rad that’s heating up so sounds like you could be absolutely correct. I took some photos before the new floor went down so I’ll dig them out

I will upload a few pictures later when I’m free. It appears to be before both zone valves Thank you

That should have read a 15mm pipe with a valve ..

Trying to get to the bottom of this issue - A couple of radiators get absolutely boiling when the HW circuit is on which I don’t want. Have been told it could have been plumbed that way as was the trend to always have a hot rad to dry towels without having CH system on in summer. Above the...

It’s Gyproc Easifill 60

Yes about that depth poss 2mm here and there