She suggested I try switching the R2 wire with the left common wire. The power of the cover went off immediately when I put it back on. I removed the cover quickly and the power light came back on.
If you go to that support article, the picture that says "Don't Do This" is really small and hard to see, but it looks exactly like what she told me to do.
I tried the system without the sensor connected at all and still had no luck with the watering.
Thanks for the quick replies.