Hunter Wireless Rain Click Issue
I have the above rain sensor. Anytime the switch on the controller (Rain Bird ESP-4M) is in normal, the alarm light illuminates, and the system will not run. If I move the sensor selector to bypass, the alarm light goes out, and the system works. The sensor is registering rain. After a rain, the bypass light illuminates red on the rain click display, and when the sensor dries out the green light illuminates. My question, since I don't have much spare cash to deal with, is the sensor bad, or is it a problem with the controller? My thanks for any advice.