Originally Posted by
CoyoteQuilts
I agree. This happens to me when I stop and reload the bobbin then I forget to put the pressure foot down and wonder what happened...
It is not possible to use the Janome 1600P without lowering the foot. It is a fail safe. I have this machine and the only time this happens is if the bobbin tension is too loose on mine. I have another semi industrial and it did that when the top thread came out of the tension wheel. I cured this by using all three holes on the thread guide. This may work on the Janome too. Worth a try.