I have The Andis ProClip Excel 5 speed clippers. They are virtually brand new. I bought them and shortly after, I lost my dog to illness and packed them away. I now have another dog added to my family and broke out the clippers. As I said, they are brand new (not even unpacked from the box) but bought over 2 yrs ago, so out of warranty I'm sure. When I plugged them in, I noted this intermittent vibration - as if the clipper was trying to turn itself on/off. I checked the switches and after plugging/unplugging them several times, pushing in the stop button I finally got that intermittent issue to stop, but they would still not turn on. Finally after playing back and forth with the switches (on off and speed) they finally turned on. I was able to use them for about five minutes and turned them off to reposition my dog and had to go through the same thing again. What could cause this issue and where can I take them to be repaired. I paid $240. for them so would really like to be able to use them.