I totally agree. Like the saying goes if it ain't broke don't fix it. They might fix it worse. Look at your manual, if you have one.
Originally Posted by
Tartan
If it is sewing fine, I would give it a good clean out in the bobbin area and put a drop of oil on the hook and sew until she started acting up. If the technician doesn't know that brand, it could take quite a while to get it sewing well again. Unless they have loaner machines while yours is in the shop, I would wait.
I would also be a little suspicious if they called with a major expensive fix if it was sewing fine. Then what do you do? Okay it for them to continue or bring home your non functioning machine.....just my opinion.