I have had the same problems with the Hunter 27182 control-ie. broken knobs on the slider after very little use. I even went and bought another unit and replaced the one with the broken slider knobs. I have three units and they have all had the same problems. Now the plastic neck that the knob attaches to has partially broken off the newest unit. I read a review on this site which listed the number to call for customer service and they are sending me new knobs and one new unit. I explained to the representative that the knobs and the slider assembly should be made stronger which could easily be done. She said that she had never heard of any other complaints which I find hard to believe and I referred her to this site so the company may get the message. The knob that broke yesterday was lying on the floor of the bedroom and it worried me that a small grandchild could get it caught in his/her throat. Hopefully, the company will fix the problem .