Tech Sheet and Wiring Diagram

We bought this fridge from a manufactured home sale. “The ice maker doesn’t work” so we got a deal…ha! Once it was delivered we found it’s not cooling at all. A repairman local in my community came out and said without the tech sheet and wiring diagram he can’t help me. Ive searched every database online and can’t find these for this model. Whirlpool refuses to help me.

Can you help me? The tech guys thinks is probably a control board but there are three in this model and he really needs the specs.

Thanks!

See the attachment for what I find when I look for a WRF757S