My Bernette 800 won’t stay threaded!
Hi, I”m new here — joined hoping to find help with my problem. I purchased a Bernette 800D serger about two years ago. Lately it will not stay threaded for more than a few minutes. It is the lower looper that always comes undone. I have taken it into the shop where I bought it three times now and every time they futz with it, threading and rethreading. It works long enough to run a few seams in the shop and they send me home, where it promptly begins malfunctioning. They even used a Sharpie to mark where the tensions of all my threads should be.
Could it be that it just needs to be serviced? Is this brand a lemon? I am still very much a novice with a serger but have come to depend on it and miss it! It was a floor model i bought at a discount and i’m worried i have no recourse if it can’t be made to function. Thanks in advance for your help!