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No electrician would install wiring like that, whether they knew about central heating systems or not.

That is not wired for Y plan, it looks like S plan. Y plan has a single valve, S plan has 2 separate valves. Assuming the system works properly with the old controller and all the wires in the loose connector blocks haven't changed, the nest looks like it is wired correctly. The black wire...

Don't forget to earth the metal plate.

Can you post some photos of the wiring?

I've seen plastic water pipes leaking from squirrels chewing through them.

That's quite a mess. I would recommend calling an electrician.

I hate it, we chuck away loads and loads of failed LED fittings now, instead of just putting in new tubes and starters like we used to. The amount of within guarantee period replacements we do is shocking. I replaced 2 new fittings in an office before Xmas that had failed after 5 weeks! We have...

The MK rollover dimmers were available years ago but not now and had a rocker switch that fed a dimmer and had the aux un dimmed terminal. Ideal for switching on the wall lights while being able to dim the centre lights. Tap Tile touch sensor switches also have a separate dimmed and non-dimmed...

Can you post a video/sound clip?

Did you fit the brushes correctly? Are they free to move in and out? Are any connecting wires properly connected to the motor? Is the motor buzzing/humming? Can you post a close photo? It might show possible problems.

Happy New Year from me also!

The centre of the burn looks to me to be where a cut point would be, though it will hardly be heavily loaded near the end of the strip. Even if it was a poorly made internal factory join, I wouldn't expect enough arcing for a few small LEDs to start a fire. If the PSU can supply 100W that is a...

Yes we have repaired quite a few of these over the years and don't often have problems getting parts. Stuck a new motor in one last year. What is the fault with yours?

A photo of the unit you have would help!

Yes, though if there is enough working room the pipework can often be frozen to save draining. Don't forget to replace the inhibitor if the pipework is drained.

Oh dear! In that case you will need to convert the system to use standard heating control components, probably to a 'Y' plan with a 3 port mid-position valve and a cylinder stat.

The system installed is designed with super efficiency in mind, the Hive much less so. The system will require substantial electrical and mechanical alterations to install. I'd recommend calling a heating engineer. (Or leaving it as it is!) The 'burn marks' are likely just dust drawn in from the...

Any photos? Might help explain what system you have.

Good vacuums those Dysons, just serviced one here. Incredible power for such a small size.

Most Samsung models have repair kits available to repair this type of fault. If you do it yourself, make sure you fit every part supplied in the kit. There was a number of recalls for Samsung fridge freezers a while back, check your model and serial number is not affected Samsung were modifying...