New train. The locomotive will not run?

[K Mike M]

Just set new track and train set, The locomotive will not run.  I have checked the power to track.  checked the tracks for connection, All appears to be okay.  Any suggstions?

Plesase help.  Grandsons new train!!!

Thank you

[Flare]

Did you accidentally connect the track to the AC terminals instead of DC?

Have you checked power output with a multimeter?

Does the locomotive run when the track leads are touched directly to the wheels?