TMCC CP F3 set has one Pullmor motor that acts sticky or balky, moves a fraction of a turn (motor armature, that is) and sticks. Unit is virtually brand new. Ran fairly well for 15 minutes or so and then started this balky/stalling behavior. Cannot see anything amiss with brushes/springs, wiring. What to look for? Motor issue, or motor driver portion of the TMCC board? Thanks for thoughts.
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