So I just received a serger for my birthday. I've been pining for one for a while! It's a Singer QuantumLock and I've spent much time trying to figure it out and threading it and all that good stuff. But I've run into a problem and thought I'd come to people here with serging experience before I called a service number.

This is a five thread serger. When threading the various paths I've successfully been able to get some stitches happening. However whenever I try to thread the Lower Looper, it doesn't work. At all. It will just move the fabric through and the needle will go through the fabric, but will not catch or anything.

When threading the Cover stitch Looper, it works ok. A little loose, but I think that is just my need to play with the tension. So the thing is that the Cover stitch Looper and the Lower Looper are very similar in threading paths and all so if I can make the Cover stitch Looper work, I should be able to make the Lower Looper work, because I assume that means I get it. I've tried it over and over again following the directions exactly and there don't seem to be any variables that I'm missing.

Any ideas? Anyone run into anything like this and have ideas for troubleshooting? Or is probably just an issue with the machine?

I appreciate any help anyone can offer since I'm extremely frustrated at this point...I've never threaded something quite so much before in my life and taken so long to do it and have it not work. So advice would be lovely!

Thanks so much!
Patti