THE REFRIGERATOR EVAPORATOR FAN WON'T RUN

THIS IS A KITCHEN AIDE UNIT. THE FAN HAS 3 WIRES CONNECTED TO THE UNIT. WHEN I CHECK VOLTAGE AT THE MOLEX CONNECTOR, AT THE FAN, I GET AROUND 12 VDC BETWEEN THE RED AND THE TAN/RED, BUT THIS VALUE DOES VARY AT TIMES. I CAN’T GET ANY READING AT THE BOARD BETWEEN P14 4,7 OR ANY OTHER COMBINATION. THE EVAPORATOR FAN, IN THE FREEZER, IS WORKING BUT I DON’T SEE ANY VOLTAGE BETWEEN P14 2,7. THIS LEADS ME TO BELIEVE I’M NOT ON THE CORRECT TEST POINTS. I SWAPPED OUT THE REFRIGERATOR EVAPORATOR FAN BUT STILL NOTHING. WITH THE HARNESS PLUGGED INTO P14, I TRIED TO GET A READING ON THE BACK SIDE, OF THE CONNECTOR, BUT STILL DON’T SEE ANYTHING. I ALSO TRIED TESTING BETWEEN P14 1,2 AS WELL AS 3,4 AND I DON’T SEE ANYTHING. I’VE ALSO CHANGED THE COIL ASSEMBLY AROUND THE 3 WAY VALVE WITH NO CHANGE. ANY ADVICE/GUIDANCE WOULD BE APPRECIATED. TX

CAN YOU ALSO SEE IF YOU CAN FIND THE COMPLETE SERVICE MANUAL ON THIS UNIT FOR ME PLEASE? TX