I worked on an old

Question

I worked on an old delfield freezer hat had r12 in it and the condensor fan and compressor would turn on when I plugged it in but the evaporator fan motor would not come on. I ran 120 vac to it and it ran, but the unit did not have a sqamatic and I really didn't know the real sequence of opperation to figure out why the fan would not come on for the evaporator. If you could find some thing on the model:6125-s or might be 5 with serial# 147697-T let me in