Josh, many thanks for the follow up.
I had a significant failure of the unit and customer service replaced it.
While we had plenty of rain here in the NE over the last 3 weeks and haven’t needed to water, the unit appears to be working fine.
I tried these steps last night. When I connected by bluetooth, I did not get an error message (I have frequently tried to troubleshoot by connecting by bluetooth). I tried cycling the power (no change) and then pulling the battery (no change). About 15 minutes later as I was trying to troubleshoot by running manual watering, the valve shut off.
I am now not able to control the sprinkler by the app. If I start a manual watering, it starts by showing me the “countdown” timer but the water doesn’t flow and about 45 seconds later the countdown timer just disappears on the app.
Please help — this is very unreliable.