AC Clutch not deactivating at min evap temp

Just got my AC working and controlling the compressor using my EMUBLACK. I have the min evap temp set as 35 and the hysteresis to 38. When the temp is below 35 the ac/ac clutch does not deactivate but if i switch off my ac then i cannot turn it back on until 38 which is fine. The main problem is that it does not automatically turn off below 35 and then back on at 38 and cycles. I need it to work like that so i can prevent it getting under 32 degrees and my evap core freezing up. If anyone knows the solution to this please help me out, thanks!