"If you've had the lights out a couple of times you'll be familiar with the procedure, and the the motors on the back, they are a twist and lock affair and the nylon ball inside the lightl that controles the reflector angle has to locate correctly in it's fitting inside the light to work or there's no movement, it can be plugged in to the housing but the nylon ball must also be correctly located inside. Or the motor has failed. Suggest a visual check that it's connected and looks healthy, no rust water or broken parts within the motor mechanism."
How can you ensure that the said nylon ball is correctly located. Had to move the motor to get at a ballast screw and iicr correctly there was some sort of cable thingy coming from it going into the light.
Didn't see a cable on mine. As I recall, it's not just a case of fitting the motor into the twist and lock socket in the back of the head light, you have to insure the White nylon ball locates in the mechanism within while fitting.
With motor removed there's nothing to stop the reflector mechanism inside flopping around, so it may well be in a differant position when refitting the motor and not locate correctly.
If all was well before removal, and the fault arose directly after on next use, it could well be your problem, or similar related.....? When did the fault arise in relation to the work done?