Posted 4/26/2025 09:29 (#11203300) Subject: Raven 440- no functions at all
We purchased a Raven 440 (dual screens) used that had been sitting for years but told everything works. Running it with a demco850 sprayer. When we power on the controller, the rate screen blinks CAL and data displays 0. It will not let me enter any calibration numbers I have checked all connections and reset the controller multiple times. Has anyone dealt with this or have any diagnosing tips?
Raven 440- no functions at all
