If your Williams electromechanical replay knocker is not firing it is most
likely due to the switches on the coin door. The knocker circuit is run
through the coin switch on the coin door. Check that the normally closed
switch on a make-break coin switch is closed. These often are all bent out
of shape by someone trying to put credits on manually.
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For more information you may contact us by email, email form, or by phone at (801)
277-6296 (voice and message), or (801) 277-0888 (message).