Replacing an old, noisy, mechanical heating control

[GhostFish]

My old mechanical heating control makes a horrible and continuous whirring sound.

Do I need to replace it, or can I easily fix the sound?

If I do need to replace it, how do I change the backplate (which I think will be incompatible with modern controllers)?

It's also not clear whether new heating controllers come with backplates - I cannot seem to tell from product descriptions, and I cannot seem to find backplates sold separately. I thought someone here might know?

 

[wwwebber]

I had an old mechanical whirring control that I simply replaced with Hive using the existing back plate and it works just fine.

 

[ianmcd]

all new controls will come with their own backplate but you will have to rewire the old one

 

[wwwebber]

all new controls will come with their own backplate but you will have to rewire the old one

Yep. my Hive came with its own backplate but I didnt need it and I didnt have to rewire anything.

 

[ianmcd]

Yep. my Hive came with its own backplate but I didnt need it and I didnt have to rewire anything.

not all are the same though