If the wiper blades have been taken off the pivot posts, they may not have gone back into the correct position. I would take them off , turn the wipers on and then turn them off. The pivots should then return to their off position. Refit the wiper blades in the correct "stop" position.
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If the wiper blades have been taken off the pivot posts, they may not have gone back into the correct position. I would take them off , turn the wipers on and then turn them off. The pivots should then return to their off position. Refit the wiper blades in the correct "stop" position.