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Are you using the 838 as a combi or do you also have a cylinder as well? You could train a camera on the gas meter I suppose or even use some maths with flow and return temp logging. Not sure of the logic on the 838 series. 838 goes down quite low just below 7kw depending on how it is zoned then...

No nothing required there at all. Only one NG appliance in the house so any gas use is only down to the boiler. Cannot tell if it is HW generation or CH without logging into the smart stat to see if that has either come on via programming or via a timed boost that I "allow" the tenants. Is this...

Ovo energy used to supply a smart meter that logs both gas and electricity in real time. Had it years before everyone agreed on a standard for the meters. It comes with a gateway that you plug into the broadband. Here is yesterdays electrical plotted against todays so far

Nope not using vrdialog. Data is logged via my smart meter, data for the roomstat is via my inspire home automation stat (which are great). Poor mans version of vrdialog here...

Same guy using SFH to check for gas rating :(. Maybe a bit of cheese jumped out his crack whilst he bent over and jammed the actuator :-) Got some spare drayton heads here so lets see how it goes. Will update

Has a service or anything else been done recently? Sometimes someone may test the PRV and then a bit of crud gets stuck under the seat.

Post 9 I say I pay the bills. It is a HMO. I run a few high quality HMO's and I am aware of faults before the tenants report out :-) So no I am not weird :-) or at least I dont think I am, just a very good part time Landlord with an understanding of heating systems amongst other things.

Ok so there has been no call for heat after over 2hrs (so tank stat finally satisfied only when CH was calling this morning between 7:30 and 9:30 which was one long burn). Just come back from there and can confirm the following. Stat on Megaflo set to 50c (so hadnt been altered). Flow temp had...

Here it is nearing the set point of 19.5 this morning

Already thought of that and asked the tenant last night to check that

Just for completeness here is all last night also you can see when CH was called for by the room stat

Yes the boiler is oversized but it never done this before. Look at the 3rd graph above, ignore the blue look at the grey that is how it normally works. Never had all this microfiring (well at least not in the past 4years) since I got the development PCB. I keep a close eye on it remotely (as I...

Could it be stuck in an endless SFH mode. Am I correct that the boiler when in SFH mode fires regardless of external controls. When put in this mode it is opening the valves (sPlan) so it will just be heating the whole system until it decides to stop and then start up again if the logic has...

Yes I always called P1 full Bifta mode :) Still not understanding why all of a sudden the gas use is jumping to 17kw whereby before it was 12kw. Hope he didnt change d.0 what a nuisance. I would have thought that it would have gone into anti cycle mode if not modulating down when flow and...

Why would he do that then? I am sitting here watching the damn thing fire with no call for heat by the room stat so must be the cylinder. Going to have to go round there to see what is going on but wondered if anyone has experienced anything like this before. This boiler had been a pain for a...

The two logics are clashing

Here is a graph that I have managed to get back as a historical one (area in grey) from a few days ago. You can see how it fires up at a lower gas rate and has nice long burns whilst stat is calling for heat. And none of the non stop firing like it is doing now, watching it remotely now and is...

All, Had gas check done on Friday, the guy but it in SFH mode to check the emissions. I have remote monitoring for gas use with live info. Since yesterday I can see it has been firing up at 17kw for 8mins then 4 mins off! The only time I have seen it behave normally is when there has been call...

This is fixed, new motor brushes. Part wasnt listed on Espares but they had something that looked similar but the slant on the brush was in the wrong direction. However the motor housing allowed me to move it through 45 degrees or so thus it was then in the correct orientation

Was making a light scrapping noise though it was a bit of plastic out of a shirt collar rubbing somewhere. This morning gone to use machine and I get error 08. Prior to this occasionally it was refusing to spin assumed unbalanced load maybe this was the start of the issue? Any clues have seen...