Not an expert I'm afraid, but I know thats a microswitch in that position. You should hear a nice audible click when the switch is toggled manually. It's quite unusual for a microswitch to bust, so you may be looking at a wiring problem

The error will be back soon enough if the switch is removed entirely. Did you connect it correctly? Right wires to right pins?

Did you check the switch outside the machine?

I've seen plenty of them go bad in the later games you can adust them get them woring in test and a few games later they go bad again now in the Sys 11 eara and wpc games I see very few go bad.

How can a switch go bad? It's this itty-bitty system of springs, a lever and a pivot, all made out of metal that can corrode, in a tiny plastic case made out of aging plastic, used in a high vibration environment and potentially getting pinball wax spilled on it. It's amazing they don't fail more often!

And the reason I ask about how it's connected is that there's a diode and 2 wires to go on 3 contacts, and only one combination of which wire is on which contact and what direction the diode is connected in that will work, so it's very possible to wire it up improperly.

Sounds like just a bad switch order another and with some simple de-soldering and soldering you should be back in business. Switches do break from time to time once you get used to switching them in and out it is not a big deal. Good luck Jdub, if you do get a tech out make sure to watch what they do and maybe help if possible. Ask plenty of questions. That way in the future you can handle that type of stuff.

Yes switches do go bad after going through so many cycles over the years
and they dont last forever,Just replace it with a new one and make sure
the wiring and especially the diode are in the correct position.Always take
pics or notes before removing any wires or diodes.