Yeah when I open the coin door I hear "errrrrrrr".
When its closed I dont hear that sound.
That being said it seems to be something else.
Its frustrating because everything else works, damn!
Included is a pic of the switch I think you are referring to, let me know if I am wrong.
One more bit of info, there are not any coin mechs & when I just tap the flipper it restarts the info on the DMD regarding the replay score. Ususally I have to hold it to get such on my other machine.
Dogh, I want to drink my corona's & get ready to rummmmmmmmmmble!