A place to share ideas, knowledge and creations with textiles. The focus is on reducing waste, whether that be sewing from the scraps left from other projects, using the end of rolls and remnants, or repairing and remaking finished pieces.
If this pedal is like all the other pedals I worked with, inside it's a dimmer switch, something might got loose, open it up and look inside. If you end up having to buy a new one and throwing away the old one it doesn't matter if it's closed or opened.
Look, this is one of mine.
Oof, that is actually very different to what I'm using. Mine has a wrack of 7 springs and an arm that slides across them as the pedal is depressed. I'd like to get a graphite waffer pedal but those are a pain to find.
Do you have a multimeter that can handle AC? Or if the pedal unplugs, you might only need to check resistance. You could check if the pedal is smoothly increasing voltage / decreasing resistance, to see if it's a pedal or motor problem. (Obviously only check AC if you're comfortable with appropriate precautions.)
That shouldn't be too hard to pull off, I'll give it a probe.
Have you oiled the motor?
This has happened a couple times on my old Singer (same symptoms), and if I run it for a while I sometimes even smell/see smoke. Then I remember to put a few drops at all the oil points, and everything runs better.
Actually that was my first thought, but a good deep clean and oiling just made the thing a tad lighter and slipperier lol