I have purchased a Maxi #5454 Central Pacific Locomotive. It was running fine and all of the sudden stopped. The lights will still operate in the forward and reverse direction, but the train will not move. Have tried another locomotive on the same track and it works fine. Has anyone ever experience a similar problem?

Thanks Paul. The only switch in the cab is for the smoke generator. I took out the chip and reseated it. It worked for about 2 seconds and stopped again. I am going to check the wiring for a short.