Calvin2376 Posted February 25, 2019 Share Posted February 25, 2019 My wife and I have had a Brother PE770 for a year or so and have been able to resolve most issues by running down the checklist (e.g. rethread, reset bobbin, clean bobbin area, etc), but this one has us stumped. All of a sudden the upper thread is stitching out very loose, with big open loose loops on the bottom and virtually no bobbin thread on the bottom at all. See pictures of what's happening here: We've made no changes in how we embroider at all - standard upper and bobbin thread we always use, same fabric, same fonts, etc. This just started happening out of nowhere. It even "fixed" itself at one point in the middle of a pattern where it had been stitching out loose, only to go back to stitching loosely. We've seen some posts online saying the upper thread tension is loose and we should increase the tension through the digital settings, but (i) we've tried that and it didn't work and (ii) we've never fiddled with those settings so it shouldn't all of a sudden need that digital adjustment. We are a bit desperate and would love any help or tips! 1 Quote Link to comment
Kat88 Posted March 1, 2019 Share Posted March 1, 2019 Sounds like your tension disks are not working correctly. If adjusting the tension setting does not work you may have to go to your sewing shop for repairs . I usually contact brother support when there is something in the manual that sid not fix. They respnd by email in a day or two and is worth the effort before trekking to the repairman . Hope this helps. 1 Quote Link to comment
GrannySmith Posted March 8, 2019 Share Posted March 8, 2019 Sounds like one or both of your tensions are off (either the thread or the bobbin or both). Most likely too tight. Loosen those bad boys up! 1 Quote Link to comment
Mindy Jones Posted March 9, 2019 Share Posted March 9, 2019 You may have a small piece of thread stuck in the tension disks. try running some unwaxed dental floss through the thread path. I have also had to remove the front panel and and pick out a small piece of thread with tweezers. Quote Link to comment
uncle Posted March 12, 2019 Share Posted March 12, 2019 You may also check your bobbin tray tension. If there is not tension on your bobbin, the top thread will be loose and loops will form. Quote Link to comment
Hcole Posted March 25, 2023 Share Posted March 25, 2023 @Calvin2376 did you ever figure out the problem? My machine is doing the exact same thing and I’ve tried everything! Quote Link to comment
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