First I broke the knob because I hadn’t seen your great video yet. I ordered the new one from you guys. It came the next day but when I put it on as instructed it didn’t work right. The metal nub kept going in behind the control surface. So I took the whole thing open and discovered the timer mechanism itself was loose due to a broken plastic piece that the holding screw went through. I then used super glue and a washer for the screw and drilled another hole next to that one and put in another screw and washer to make sure all was secure. Then the new knob you sent worked perfectly. Thanks.