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Upper Thread Error

I am trying to embroider on my Brother Innovis 4000D and I keep getting an error "Check and rethread the upper thread." I have rethreaded changed the bobbin (and bobbin case) changed hoops and stabilizer and replaced the needle. I still get this message and the few stitches it does manage to embroider in between messages, are a mess on the back side. The upper thread is making very loose loops on the bottom side of the design. Any suggestions?

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Re: Upper Thread Error

I just posted this under another Brother machine...mine is a se 350 but, might be the same problem!! Hi....I also kept getting the check and rethread upper thread message, I'd sew about 15 stitches and it'd stop. Here's what I did. On the left of the machine, in the back there is a screw....loosen that screw, take cover off, then lift straigt up and out on the cover that has the 3 on it in your threading seqence. Next, I started inspecting and cleaning the thread route from top to bottom. Lo and behold....I get to the place where you come down the front of the machine and turn to go back up and I spot a little slice/cut in the plastic piece so, when I was threading the machine I guess I was pulling it to far to the left causing it to wear a little slice/cut in that, I finished cutting it off with a utility knife, used an emery board to smooth it down, put the covers back on and it works GREAT!!!! Who would've ever thought that it'd be so easy and save me a bunch of money!!! I sure hope this helps someone.

Posted on Jan 07, 2013

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Re: Upper Thread Error

There could be thread caught in the tension disc in the top of the machine you can get the cover off to clear the thread but it is a bit tricky to get back on

Posted on Dec 06, 2007

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