I got my digital set out for my grandson. It has been in the loft for a good 15 years. Before this I had only used it a dozen or so times. I set it up, all power to slots, but cars won’t go round the track. I changed the brushes, but still nothing. Some cars wheels turned when I held them up but again when dropped onto track it may go for a track length then stopped. it’s really like a brand new set but not working. any body any suggestions on how I can get the set sorted for my grandson. dave