This. I bet you're talking about the agitator pawls been there. Or the rollers in a clothes dryer. Or an impellor blade in a dishwasher. Or the element in a hea

This. I bet you're talking about the agitator pawls been there. Or the rollers in a clothes dryer. Or an impellor blade in a dishwasher. Or the element in a heater. Done this a bunch of times. So many of these machines can be fixed with a few dollars and an hour of your time if you're not afraid to read up a little, watch a youtube, then tear it apart and look up the part number on a website. A pro visit would be $150 trip charge (or two), another $150 labor, and a big markup on that part. Or they'll just tell you to replace the whole thing. This is one thing that can actually be worth your time, so give it a try to save it.