I have had my ghost peppers in my dehydrator for a few days now at 135 degrees and all I have seen in progress is that they are soft to the touch and are a little shriveled, nothing like what I have bought before.
How Long Does It Take to Dehydrate Whole Ghost Peppers?
Thin walled peppers usually dry easily by just being left to air dry in a single layer in a well-ventilated spot.
If your peppers have been in a dehydrator for a few days, I'd check the temperature with a thermometer to make sure the machine is working properly. Ghost peppers should be dry in just a few hours.