Good morning The problem I have is that my Thomas engine just stopped working. It is a Christmas present for my grandson and the seller told me to run it in before handing it over. I was doing just that, running it around the oval, when it just stopped. I checked the track, which was fine, and when I replaced the engine, it appeared to short out and the controller shut down. I have tried holding a 9 volt battery on the wheels as has been suggested in the forum discussions but the motor will not run. The engine has hardly been used since the original purchase brand new and I have probably run it for no more than an hour. I hope this is not terminal for Thomas!