E85 detector environment failure

This is usually because the detector temperature is above the max or below normal 25 degrees Celsius required to make exposures. First things I would check are the coolant level and the condition of the filter. Clean and top off as necessary and see if that helps. If you remove the top cover of the generator cabinet and don't see a temperature on the conditioner LCD screen, there's likely an error message there too. Once you clean and top off, you may need to turn on the detector power supply before you can make exposures. The button is on the control panel near the right front corner inside the top of the generator cabinet. 

If after the temperature is correct, you still get the error. It may be you don't have some calibrations, or the detection files installed