[Richard]

So……….the labeling is simple.

RU right up
RD right down
LU left up
LD left down
M would be travel

Yeah I know one of the labels is a duplicate, but it would so easy to smear a D into a U and vice versa. If you have a helper, the solenoid should energize and turn into a magnet. A screwdriver or washer is a great diagnostic tool in the case.

Here is where I am confused, I have only seen 3 solenoids in your pictures of the rear compartment. Is that true? Or are there 5 solenoids in the rear compartment. It’s very important because with only three, you cannot control side to side leveling. I encourage you to study the first few pages in the HWH manual I linked at the first of this post. It will help you understand the point. In addition, I don’t see any wiring coming out of the terminal block going to LD and LU

And can you try the trick I outlined for getting pics into the post?