Problems with turnout motors/switches

[RobertInOntario]

Depends on the transformer. Most have some kind of overload protection to prevent ruining in the event of a short circuit. I have even seen some cheap train set power packs with cheap thermal circuit breakers. It's possible you damaged it through incorrect wiring, but I think unlikely. What brand of power pack is this?

Turnout motors as you describe are basically two electromagnets (the atlas ones are as well). They are only designed to take a momentary current (just long enough to switch the tracks). I have no experience with hornby or peco motors, but I know the atlas ones will burn out if current is applied for more than a few seconds. One of the two magnets will burn out, and then it will only switch in one direction. Incorrect wiring, a short circuit, or a faulty push button could cause the motor to stay on too long and burn out.

Thanks, Kevin. This is really helpful.

The transformer is made by Railpower & I bought it new about 5 years ago. I just went to an LHS and they said it has probably worn out over time. They have a new one in stock -- an Athearn one for about $40, which I'll probably pick up later today.

Based on what you say, I think I've probably burned out part (half) of the turnout motor. I think my wiring is OK because the entire set up worked well after I had initially installed the motors and switches, etc. One of my sons may have been the guilty culprit in possibly holding down the button for too long. On Sunday, he started pressing them at random (before I could stop him) because he liked the sound -- argh!

I'll try to continue resolving this tonight!

Rob