"E3" message appears on the LCD.
Cause
This message is displayed when an erroneous operation is performed as follows.
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The Start/Stop button is pressed while the buttonhole or bar tack stitch is selected and the buttonhole lever is raised.
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The Reverse/Reinforcement stitch button is pressed while the buttonhole or bar tack stitch is selected and the buttonhole lever is raised.
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The foot controller is pressed while the buttonhole or bar tack stitch is selected and the buttonhole lever is raised.
Solution
Lower the buttonhole lever before continuing the operation.