They break dude, you may be lucky, and I hope you are.
But mine broke and Cheryls broke. Something in the clipper head falls off and you have to send them back to Liveryman who are actually fabulous and the fix them FOC. But it is a pain. I think it is something to do with the rotating head, which actually seemed like a good idea at the time, but I never used it!
So if yours should stop clipping, when they are not hot, and are clean and the blades are sharp, but just will not clip, chances are the bit has fallen off.
I got mine fixed and serviced, again FOC and then I sold them on Ebay quick as I could. Person who bought them was really pleased! Wonder if they still are now????
Tigger and Diz go a bouncing!