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Introduction
BERNINA Bernette not working
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Fault: microswitch in the foot pedal is defective
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Opening the footswitch:
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Where the axle is hooked in, use a flathead screwdriver to pry the outer part outwards so that the internal nubs slide past ... replace the switch, check it beforehand with a continuity tester (UNPLUGGED!!)
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The switch is normally open, but when the footswitch/lever is pressed, it switches to continuity...
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Follow the steps in reverse order to reassemble your device.