Well I changed it back to factory and all 3 settings where on 222*. So what do I do?

Thanks... I set all settings to 202. It worked fine. I might lower it to 198 tho. The dcx is a little miss leading. Under the fan off section it has high mph ac fan on and low mph ac fan on.to me that is very contradictory. Thanks again.

Bump for a educated guess....

Anyone know what to set the 3 fan settings for a 180 degree thermostat and efan with the dcx? I have the high mph fan set to 202 the low mph set to 194 and the fan on setting to 202. Once the truck gets warm the fan never shuts off. Thanks