OpenSprinkler › Forums › OpenSprinkler Unified Firmware › ETo adjustment suddenly going to 0% (after a year of working great) › Reply To: ETo adjustment suddenly going to 0% (after a year of working great) March 16, 2025 at 10:23 am #81600 RayKeymaster The weather server returns the weather data used for the ETo calculation, and the firmware stores it. You can check the ‘wtdata’ field in the /ja (JSON all) endpoint to see what data it used that resulted in the 0% calculation.
