I’ve been having an identical issue, rather frequently at times, and it’s with the Rachio flow-meter. The system is watering fine, but periodically it will indicate a low-flow condition with one or more zones (either 0.0 or 0.6 gal/min on zones that are usually > 5 gal/minute calibrated) And it has once indicated a low flow rate report that included a leak warning (go figure that one out.)
What’s up with this? I replaced the flowmeter batteries, but the ones that came out tested perfect on two battery testers. The incidents decreased but didn’t completely stop. I’ve learned to ignore them since they leave the zones active. It also moves around my 8 zones, some nights 1 zone, some nights 3 different zones.
Anyone else? Any ideas what’s happening?