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Thank you and I was going to post a photo on this one which had me stumped. I've since worked out what I did wrong, I'm such a moron, its all down to the way the original switch terminals are arranged on the rear of the existing switch (ie there aren't two separate switch units as there are...

I purchased a new 2gang switch from B&Q (branded volex) in stainless steel to replace the switches used to control my bathroom lighting. I fitted it to replace an old paint covered MK switch, matching wires to equivalent terminals. All I added was a loop of wire to connect the earth terminal in...

Hello all again, apologies for not replying sooner and thanks for posting responses here. Further apologies that my own lack of knowledge is contributing to making this harder to discern what's going on. It may be worth me flagging the bits about the system I do know and then explaining its...

Thanks for this - the nest installer suggested fitting a diverter valve as an option but told me that it could require removal of a couple of my current kitchen cupboards to achieve, as the boiler is in one of them and the pump is mounted alongside another (tucked behind a wall). He suggested a...

The old programmer was a good bit older than the boiler - the boiler itself is a Potterton Kingfisher Mf installed in 2002 which is D rated (78% efficient). I totally agree it would make sense to replace it in due course, but I think I'll leave it the 3-4 years we anticipate keeping the kitchen...

I'm trying to work out if there's any point in fitting a relay to allow for independent operation of the CH and HW. I have a gravity fed system at my house supplied by a Potterton boiler. I recently had my local electrician replace a prehistoric ;-) satchwell programmer (no battery back...

I've recently moved to a house with a Satchwell Sunvic ET Programmer/Timer. It's mounted in the airing cupboard with the hot water cylinder but does not have a backup battery, so loses all programmes wherever there's an electric cut. There's a generic instruction manual but no model number...