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I didn't have a tester with me when I was replacing the switch. I don't have one at present, but I can borrow one.

I'm sorry, but I couldn't say. [Update: I have just re-read this. No, the switches in the small newer circuit breaker didn't trip.] I had the old light switch physically detached from the wall when I was shocked. Warily (naively), I then used insulated pliers to individually grip the 1 Earth...

Just looking back at the queries, there are no fluorescent fittings in the bedroom. Here's the meter. It's immediately behind the 2 CUs on the exterior wall (the 2 CUs being on the inside of the garage wall). Thanks

Hi Everyone Thanks for all chipping in. Apologies, too, for the blurriness of some of these photos. 1. So, here's the upstairs landing. The previously mentioned shower is in the bathroom on the left, the airing cupboard is in the centre-right, and the light switch I was shocked by is visible...

Yes, a small 2 or 3 switch secondary breaker was added last year to power an upstairs shower. I felt safe ignoring that little one, though, as : A. I didn't see how it could affect the bedroom light switch, and B. The secondary takes its power from the primary, which I had fully switched off...

Yes, every breaker. There are perhaps 9 small black breakers and 1 large red one, all in a horizontal line. I had turned all 10 of them off.

No, but my right bicep is still aching a fair bit, although the ache in my right pec has subsided.

Hi Terry. I literally turned off every breaker. I always do. I switched everything back on an hour ago and everything's been working fine since then. It's pitch black outside now (the wife's cooking as well), so I'll take a pic tomo in the daylight and post it here. I can get hold of a...

Apologies if this sounds ridiculous, but it's true. I've just moved a socket downstairs in the utility room. Turned every switch off on the circuit breaker in the garage, uncoupled the socket, moved the wires, recoupled, no problem. I then went to change a standard light switch in an upstairs...

Thanks, Ian. I have today had the opportunity to move all the cables and sockets and make them all nice and neat. Cheers

Hi Ian I have got it working, but I did it tinkering before I saw your last message. Please tell me if you think I have done something wrong, though. In block M6, white cables 18 and 19 were joined by the coupling below. I looked at the instruction book pages I posted above, and I reversed...

In addition, the 2 relevant pages from the instruction manual are below. Thanks

Hi Ian Pix as below. I really appreciate all this btw. 1. This is the disaster zone I am faced with underneath the boiler and behind the tumble dryer, none of which, I hasten to add, is my doing (but I will tidy it up after this). Indicated by red arrows is the thin white cable exiting the...

Hi Ian. I heartily agree re: the selector knob. It feels flimsy. I am very much a layman, but why should the thin cable from the SCR to the boiler be left in place, please? In my naivety, if I were to remove that cable, the boiler would then have no external inputs whatsoever. It would then...

Hi again, Ian. I have had to switch the system off as the pressure when the heating is on is racing up from just under 2 bar (in the green zone) up to 4 bar (at the maximum of the red zone). Naturally, I didn't used to watch the needle move when I had the heating on in the past, but I don't...

Hi Ian That unfortunately doesn't work. In the pic, the red slider is on the "0" setting for "Heating permanently off", but the heating still comes on. It also comes on when "Timed" is selected but the little grey notches are set to "Off". At present, the only control I have is to flick from...

Hi Ian. Thank you again for replying. I did as suggested (putting cables 1 and 3 into terminal 1) and the heating came back on, but now it seems to be on almost permanently. As per the photo, my boiler has a timer (red circle) with controls for Off, Timed, and On. None of these currently...

Cheers, Ian. I will give it a go.

Hello. I got the installation company to come out again. They said that the 4 "keeps" on the affected windows were ever so slightly out of alignment. They adjusted them and all is well.

I have a Digistat +2RF/+3RF wireless thermostat and SCR (pictured below) connected to a Saunier Duval Semia Condens F24 E boiler. This morning, the receiver (SCR) malfunctioned out of the blue. No lights are lit on it and cutting the power and restoring it makes no difference. In similar...