I live in a rural area and have an over abundance of packrats, chipmunks and rock squirrels. At least one got to my 800s wires , the repair was simple , I'm lucky in this. While at my dealer he told me this happens frequently here. He told me the best solution is to cut bar of Irish Spring soap,drop it in a sock and hang it on the frame! It never fails. I did so & now wait and see. Anybody else tried this? Wayne