This error test report for switches usually happens whn there is a problem with a switch or if the switch was not closed for a while. In my case they are all ok, but the test report requires me toclose them all one by one manually.
Is there any way to mark all switches ok at one time ? Withput going behind or under the playfield for closing them ? Playing a normal game does not make the switch error message disappear, even if the switch is closed during the game.