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With AFDD's, my understanding is that if a new electrical signiture/waveform/noise pattern from a new product gets created on the mains line that gets falsley detected as an arc, it can be addressed by a firmware update rather than having to swap the entire AFDD breaker out. As for internet...

I know two of the AFDD's did say update avalible on the app and started updating, whether the other two were allready up-to-date or updated in the background, i'm not 100% sure. All 4 AFDD's were purchased at the same time. My AFDD's are: 32A Kitchen sockets 20A Downstairs sockets 20A...

App was down day before yesterday ironicly when I phoned support, app is now working and I have updated all 4 AFDD's of mine, although I think the AFDD that was tripping was allready up to date...or that it updated in the background without me realsising when I connected it by bluetooth.

Because I splashed out for them in my own choice thinking they were a good idea, a bit like when RCD's were first introduced. As for why I chose Hager, becuase I have known it as a reptuable brand of distrubution boards.

So my new Hager board in my new house has AFDD's and I have been getting frequent nusciance trips in the last week, due to things like my air fryer and sds drill causing series arc faults. (AFDD in question flashes Red/Yellow when button held folowing trip, which accoding to the manual is a...

Thanks, I will check when I am next up.

It's not rising as such but rapidly bouncing around (swinging back and forth) within say a half or third of a bar or so.

So I have been at my elderly grandparents over Christmas and noticed that the analogue pressure gauge under the boiler was noticeably swinging around a bit in the 1.5-2.0 Bar region whilst was the boiler was on. Is this normal or does it indicate a underlying issue? I read somewhere online...

In essensce 6 core cable, each PIR only requires 4 wires, so 2 wires for shared power for each PIR, 2 wires for one PIR, remaning 2 wires for next PIR. So for example, zone 2 is hallway PIR and zone 3 is kitchen PIR, PIR in hallway and kitchen share power, but each have thier own pair for coms.

All cables are of the 6 core shielded type. 3 PIR's and the single door magnet go directley back to panel it's self, other 3 PIR's go through 3 other PIR's and share power going back to the panel. Downstairs keypad is fed of of ZEM32-WE which goes back to pannel, upstais keypad goes diretcley to...

DEOL, Dual End of line. But the Dual EOL (DEOL) vs Single EOL (SEOL) setting is system wide.

More that all 8 zones on the main panel had been used, and I did not want the faff of running a extra zone to the Keypad which I know can support a extra 2 zones per keypad. Plus the screened wires had already be run and fixed in place by the time I came to power up the system. I have the zones...

High curent car battery charger + car battery + Inverter, maybe?

So I've just installed a Pyronix Euro 76 alarm panel (Confiqured and running the system in the DEOL mode with 4.7KΩ for alarm and 2.2KΩ for tamper) in my new house and zone 4 which has two detectors wired in series according to the below (other than the tamper jumper on the second PIR is set to...

I think it was more difference is guidance from different DNO's than anything set in stone.

Not personally, but the people who did the lead replacement on my side of the meter did. It was lowish, but not sure how low. Biggest problem atm is if you have the kitchen tap running downstairs, the tap upstairs in the bathroom would barley dribble out, although I have not tested that that...

Thanks everyone. And yes, there would be no extraneous parts or any plumbing in my future shed. It's a small brick building with a flat roof what is about 4 meters away from the back of the house. I also vaguely recall on whether your allowed to export the CPC on a TN-C-S supply, also...

So in my situation, would you TT the shed or simply export the CPC via 3 core 4mm SWA to the Shed and possibly add a extra earth rod at the shed for extra protection?

Just I am sure years ago (arguably when my knowledge was less) I read online somewhere that you can export a TN-S supply to a outbuilding such as a shed, but can't do so for a TN-C-S supply unless you either TT the outbuilding or export a 16mm CPC from the main board to the outbuilding due to...

First with all loads turned off on all boards, measure the voltage between the incoming N and E. Providing that is 0V or less than 4V what is the limit of voltage present when doing a continuity/resistance measurement on my MFT1730, measure the continuity/resistance between N and E. Of course...