Help - new install wiring - no zones working

post by Asad726 on Aug 9, 2025

Replaced my weathermatic SL 800 with a Rachio 3 - see wiring pictures of before and after. None of the zones will water. What am I doing wrong?

post by Thomas_Lerman on Aug 9, 2025

It looks like you have a master valve did you enable that in your app? It also looks like you have a sensor. It gets hooked up very differently than the old controller. I would suggest getting it working without that and usually people do not use the sensor with the weather intelligence from what I have seen. It also looks like nothing is hooked up to common, which is required. I cannot look closely right now, but it appears you have brought over a jumper, which should not be.

post by DLane on Aug 9, 2025

@Asad726 - As @Thomas_Lerman pointed out, remove the black jumper between S1 and S2.

Let’s get it working without the Hydro Rain device and then determine if you want to add the Hydro Rain device back into the system later. To do this, I think the white wire with the blue wire nut is the common wire to the solenoids, so I’d place that in the Rachio C terminal. Leave the small yellow wire from the Hydro Rain device disconnected for now (I think it will eventually go to the S1 terminal).

post by Asad726 on Aug 9, 2025

Thank you so much! This fixed the issue!

post by Asad726 on Aug 9, 2025

Thank you for taking a look!