I have two AC / DC adaptors.
Model SY-002-5-12 Output 12V_...2A 5V_...2A and
Model LX1205 Output 12V_...5A
Only the 12V _2A will run the motor.
What am I missing? I thought the 12V_5A would be the better choice as a power window motor usually runs around 12V_5A.