I’ve started getting the low flow errors as well. Replaced the batteries, and no difference. Had my meter since July 2018, so almost 3 years. Looking inside, the main sensor is enclosed within a rubber membrane which seems to be deteriorating. Can’t fault Rachio for it, since that part was designed by their partner. That being said 3 year lifetime for $100 was a good value for me, compared to alternatives which are much more expensive. Alas there is no easy replacement. I’ll have to think if wired version of the low cost meter is worth the trouble.
