Reliability of fault codes potterton

[John.g]

Hope your plumber has arrived. If you look at the attachment sometime can you confirm my queries (text), also presume the rads are plumbed in further back on the same piping but with zoning?.

 

[johnnyt74]

Hope your plumber has arrived. If you look at the attachment sometime can you confirm my queries (text), also presume the rads are plumbed in further back on the same piping but with zoning?.

Yes, the plumber turned up first thing thanks. He said that the jobs not finished and he's going to get it sorted. He's thinking that it's all to do with air in the system and that he'll get it sorted. Although he left and I've not seen him since so not sure if he's sorting it today or coming back next week?

To answer your questions in the text on the image - yes, those pipes were run just for the UFH and arrive (without interruption) back into the "boiler cupboard" as marked on this image. I'm not sure about your "presume the rads are plumbed in further back on the same piping but with zoning" question as I can't make head or tail out of the pipework in the boiler cupboard? So, can't really say? I presume so.

 

[John.g]

While you are waiting maybe try ShaunCorbs suggestion first and if no joy increase the ABV setting to say 0.25/0.3bar and note the UFH flow gauge readings before/after any changes, you can always change it back after your tests.

 

[johnnyt74]

While you are waiting maybe try ShaunCorbs suggestion first and if no joy increase the ABV setting to say 0.25/0.3bar and note the UFH flow gauge readings before/after any changes, you can always change it back after your tests.

Yep, good idea. I'll hopefully get to do that over the weekend. I'm currently boarding out the extension so like to keep the floor off during the day (as it sweltering otherwise) but I want to test a few things this weekend and try and get to the bottom of it.
Thanks for your help. I'll post back with any developments

 

[johnnyt74]

Just a quick update on this.... I've not had another trip since the plumbers visit. He bled all the rads when he came and he phoned Saturday and told me that he's 100% convinced it's just air in the system and that it just needs time to settle and bleed off.

He's going to test it next time he's here and, if necessary, "blast the air out of it". But he's hopeful the air will just dissipate as it's used. I put the heating and UFH on simultaneously every evening since Thursday and (fingers firmly crossed) the E125 fault hasn't returned?

So, I'm hoping he's right. Assuming the UFH was full of air, I was wondering if that would restrict the flow of water, therefore making the boiler temp go over the "30 deg above set point" rule and therefore faulting on E125. It makes sense in my tiny, non-plumbing brain??

 

[John.g]

Possible all right I suppose but strange that the fault only showed up when both systems on, did you note the flow gauge readings on the UFH manifold?
Is the cap on the automatic air vent on the (right side) of the flow manifold open, if not open it, release any air, close it again and test regularly for air.

 

[johnnyt74]

Possible all right I suppose but strange that the fault only showed up when both systems on, did you note the flow gauge readings on the UFH manifold?

I haven't done that yet John. I've also not tried Shauns suggestion. It's been a busy weekend as I was hoping the plasterer was coming today so I've been flat out getting all the electrics finished ready for him. Cutting out for the sockets / downlights etc, a couple of tip runs and just generally sorting through everything.

I'm not sure the plasterer is coming now though as he's not been in touch. If he doesn't show then I'll stick the heating and UFH on and try and see what's happening.

One of the jobs I did get done was battening and fixing plywood to that wall that the manifold is on (in the photos) so I disconnected the wiring centre and then fixed it a bit more neatly to the wall (fitted a local Switched Fused Spur etc). Got plenty of photos of how it's connected so planning on trying to find the manual and get my head around all that to make sure it's connected up correctly etc.

The plumber did say that I needed to "let him finish it" (basically, stop worrying about it until it's all done) so I'm assuming that he's aware that it needs balancing and that there's still stuff to do on it.