I own a Stern Mustang Pro and I turned it on for the first time in a while and got a technician alert check switch #23. I’m fairly new to pinball tech and was hoping someone could guide me through on how to fix this issue on stern machines.

EB1521EA-9908-4A63-80CC-C3332BA2B94D (resized).jpeg

#2 5 years ago

ZAC

zacaj

RPC

Rochester, NY

11y 158K 10,383 84 122 1

That's a switch for if the balls have gotten stacked in the trough. Empty out all the balls, then go to the trough test and see if all the switches in the trough are working people rely.

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