Turned on my Funhouse today and had some switch issues. Report said right flipper and left sling shot. Well, when I test the right flipper, it activates the flipper, but it doesn’t ‘test’. It doesn’t show the switch works, but obviously it does, because the flipper fires. On the slingshot it tests about once every hundred touches. The rest of the time it acts like it’s dead. All the other switches in the row (row 1) works.

What’s going on to cause this and how do I fix it? Also, as I’m sitting typing ever so often the ‘Test Position, Always closed” (switch 24) randomly activates. Related? Unrelated?

As always, thank you in advance for any help.

When I get back to the house I’ll try cleaning the switch’s on the slingshots. As for the connectors on the MPU, which ones are you referring to?

Sanded the connectors on the switches, slings work now. Thank you for that! Still trying with the flipper error