Feed motor not working.....I took off motor purchased new motor but it was the wrong one....So i put the OG back on and it worked for almost 24 hours then quit. I haven't checked to see if the motor is good or not yet.....today at 11 a.m. I hear a lot about these Vac swithces........Not sure how to test this one or really where it is ? I do see the tube. Also i am having black creosote inside box under viewing glass, sides and chimney cap....this is my first experience with this happening. Appreciate any comments.