Hello Victoria and welcome to BluePlasticTracks
You have come to the right place for help as many of our members have experience in repairing these trains. I have not had a Caitlyn but some of our members have and they would know which type of motor she has. I can only assume its a flat drive. One question that might help is...
Does the motor make a sound when turned on but doesn't move the wheels?
With the battery removed and the switch in the 'On' position, do the rear, drive wheels, move?
Others may have more questions or ideas on how to help and narrow this down.
You have come to the right place for help as many of our members have experience in repairing these trains. I have not had a Caitlyn but some of our members have and they would know which type of motor she has. I can only assume its a flat drive. One question that might help is...
Does the motor make a sound when turned on but doesn't move the wheels?
With the battery removed and the switch in the 'On' position, do the rear, drive wheels, move?
Others may have more questions or ideas on how to help and narrow this down.