The weather station failed to communicate with the controller.
What might happen as a result of the issue?
The controller will continue to operate in Auto Adjust mode, calculating run times as normal, for 5 consecutive days without communication.
After 5 days, controller will automatically change to Standard mode and begin watering based on standard run times.
After 5 days, you will also receive a NORMAL to NONE SLW error indicating there is no SLW attached and steps must be taken to re-sync devices.
The problem may be the result of localized interference with communications, power outage at controller, insufficient battery power at the weather station, or for hard-wired weather stations the wire path may be damaged.