Kenmore model19501 only sews backward. can i fix at home?

You can try the old hairdryer trick, take off the cover, (usually loosening screws and removing) then take the hairdryer and let it blow on the reverse and stitch length controls until it frees up. Use gloves because the metal may get hot.I read it on the www.sewvacdoctor.com I hope it works, it did for me. Just pay attention to where your screws go back in so that they are all in again. Other than that, you may need service.