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[Auto Addict]

The front door bell push button is very discoloured, so I want to replace it.

It's wired into a transformer system.

Simple push button with a wire in and wire out.

Question, can I replace this with an illuminated push? If so, how does the illumination work with just a wire in and wire out?

[Kevin Wood]

The illumination is normally a small bulb across the switch contacts. It passes a small amount of current when lit, but not enough to cause the bell to sound. This is why the light normally goes out when you press the button.

[Andy B]

I'm guessing .......

The illumination generally goes out when you press them, so I'd say that the transformer supplies the light untill you press the button & then it supplies the bell

[Auto Addict]

Thank you

[LFF64]

Try something like T cut on the plastic it may clean it up then you won't need to replace it 👍

[biggriffin]

Don't replace it, then when god squad call you won't hear them