My elderly next 5 door neighbour has the door bell in the title.
It stopped connecting so I have been helping to sort it out.
Sadly its not the sort of thing you should do with a failing memory.
I thought the reset button on the side had failed but after several hours I found the real reset switch lurking under the rubber cover at the bottom.
My question is what on earth is the part behind

the small hole in the side (in the photos.)
It was attached to two wires to which I attached a new micro switch. ch.
It stopped connecting so I have been helping to sort it out.
Sadly its not the sort of thing you should do with a failing memory.
I thought the reset button on the side had failed but after several hours I found the real reset switch lurking under the rubber cover at the bottom.
My question is what on earth is the part behind


the small hole in the side (in the photos.)
It was attached to two wires to which I attached a new micro switch. ch.
