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Led blinks when train put on track

Led stays steady until the train is put on track , then it blinks and won't run

Posted by Steve Braun on

1 Answer

Gerald Lewis

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I am assuming you are using the Lionel CW80 power source. If so, the blinking light might indicate a partial short or a problem with the motor. The reason I believe that is that the CW80 has an internal fuse, which will blow for near shorts/shorts. A stalled motor i.e stuck drive gear, can cause excessive power drain although not enough to blow the internal fuse and also cause the engine not to move. Also, If the engine has the neoprene belt on one of the drive wheels it might have come off and is jamming the running gear or wheel. I believe the Polar Express only has one neoprene belt.

Posted on Feb 10, 2015

Testimonial: "If I only put a passenger car on tracks it does same thing ? Lights on car blink on and off and also led blinks . It's brand new out of box today . Does it need to charge ?"

  • 4 more comments 
  • Gerald Lewis Feb 10, 2015

    This sounds like an issue with the power supply regulator board. Put the passanger car back on the tracks and connect the rail power to the accessory output of the transformer. Make sure you follow the instructions to set the accessory outlet power to at least 10VAC. If the light in the passanger car stays on, the problem is with the rail power regulator board in the CW80.

  • Steve Braun
    Steve Braun Feb 10, 2015

    This is a polar express ready to run train 78-1101-250 . The led stays lit and constant until we put the engine car or a passenger car is put on the track . Then the led light blinks and the engine acts like it wants to go but doesn't . It's headlight blinks and it goes forward a touch then nothing .

  • Steve Braun
    Steve Braun Feb 10, 2015

    I don't think this is a CW80 ?

  • Gerald Lewis Feb 10, 2015

    This is the DC version of the Polar Express with the remote. Please refer to the service manual at

  • Gerald Lewis Feb 10, 2015

    This version does have two neoprene belts on two of the drivers. Make sure they are both seated in the wheel groove. It still does not make sense to see the light blink when only the passenger car is on the track. The DC power pack may be acting on an overload condition in error, in which case it is not the engine or car issue.

  • Gerald Lewis Feb 10, 2015

    Do you have access to another DC source i.e 6 V battery you can connect to the track to run a quick test? Just make sure you get the polarity correct. If the engine moves, it is then obvious it is the DC power pack.


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