Hunter Technical Support Document
What is the little icon that flashes on my controller's display?
The sprinkler icon flashes when the controller is outputting power to the station terminal or terminals activating a station.
If the icon is blinking with an umbrella on the display, the rain sensor’s circuit has been broken and is not allowing for watering even though scheduled watering should be occurring.
If the display is also flashing the word "OFF", the rain sensor is activated. Use the bypass button to eliminate the message and continue watering.