The air control on my Spectrum has started binding when I move the lever from left to right. It binds a few inches form the right end, then the rod jumps upward in the slide lever. It looks like it may have a slight bend just before the front 90 degree bend. Any body experience this on their PE? Any suggested remedy? What would be a good high temperature lube to use on it? Think this would be covered under warrenty? Would a dealer be paid by PE to come and replace it?