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The heated water doesn't go up the expansion pipe (ok the level might rise a bit) the cool water comes from the cylinder not the cold water feed tank, there will be no flow from the cold tank unless a tap is opened. thermosyphon is surprisingly effective, and the water will have no problems...

The heated water will rise up through the heater via thermosyphon, as it does it draws cooler water from the bottom of the cylinder, heating the cylinder from the top down.

Older MEM MCCBs are known for never being able to switch them back on again after they have been switched off. A colleague tripped a 400A(!) Dorman Smith MCCB a while back. We couldn't reset it until it was dismantled and the mechanism freed. The grease used on the moving parts had turned to...

No not isolated. Most people just use their mobile phones for everything and have now ditched the landline phone. I have FTTC internet. Though one of the neighbors accidentally booked full fiber to my house instead of theirs, so I've had a coil of unterminated fiber cable outside the front door...

I was moved to BT's 'digital voice' mid last year. No warning, I phoned up to report no phone service only to be told I had been switched over! The new service has been most unreliable, frequently can't dial out, just get error message instead of dial tone, the audio quality is really harsh and...

I have this very old NOS MK plug and socket. Even back then they are calling it a socket and plug.

It's not straight to allow the water to run off.

The photo of the cutout suggests a TN-S earthing system not TN-C-S.

Perhaps you should have had a better sparky out... There is no reason the fault could not have been narrowed down. MCB or pump sounds like clueless guesswork to me.

The main danger is to someone working on the circuit the neutral has been 'borrowed' from. If someone was to isolate the socket circuit, test it dead, it would appear dead. If they then disconnected the neutral wires at some point on the circuit between the consumer unit and the light, say to...

As above. Do you have 240v on the grey wire too?

The one in jj4091s link was closer than mine...

Something like this? https://pipedreamfittings.com/product/table-d-slip-on-flange-316l-stainless-steel-2/?attribute_pa_size=12&utm_source=Google+Shopping&utm_medium=cpc&utm_campaign=xm01&gad_source=1&gclid=CjwKCAjwrvyxBhAbEiwAEg_KgjUS6k4UKmRMQ0BImOfg_9S1tfPc-SVx6N3YoMRTsyf-csSNEHXV8RoCoGwQAvD_BwE

You need to check the wiring. The existing stat appears to be connected incorrectly, and or is using the earth wire as a switched live which is not permitted, the manual also says not to use terminal 2. If you only have 2 wires and earth, the HRT2 and HRT3 models are not suitable as they require...

That modification would certainly increase the life of the synchron motor as well as save some electric.

The valve will stay in its last position when the programmer/stat is switched off however if both HW and CH are running and the valve is in the mid position and shut off together the valve will spring return to HW only. If only the CH is running the valve will stay powered and remain in the CH...

Those aren't 12V transformers, they are constant current LED drivers, If you plugged the LEDS in with the power on to the drivers you will have blown the LEDs due to over voltage.

Don't forget the crazy date codes on some old cables, AEI used to use: MAYFLOWERS for 1234567890 e.g. MRLS for 1950 BICC used a similar system but I can never remember that one.

Long enough, that cable is a nightmare!

Hi, does anyone have a link to or copy of the update patch for the RSS software? I have the patch update to version v7.03 but need v7.04. I was able to download the last update via the Honeywell website but this time I just keep going around in circles. I've tried to register but that part of...