Installed my Rachio 3 today and connected my prexisitng Irritrol rain sensor. Everything seems to work fine except that I’ve received a half dozen notifications that the sensor has activated and then deactivated the Rachio. It had rained the night before but I don’t understand why it would turn on a…

[image] mckynzee: Try switching those red wires- maybe there is a chance they got mixed up? @mckynzee - That solution worked! Who knew there was a difference between the red wires? Thanks.

That usually is due to wiring or maybe a rain sensor that needs cleaning/maintenance. Here is an article with Irritrol wireless wiring: [image] Rachio compatibility with Irritrol Wireless Rain Sensor Wiring Instructions for a Irritrol Wireless Rain Sensor DISCLAIMER Rachio is NOT affili…

Thank you for the advice. As for the wiring, I followed the instructions from your first link so I assume it is correct. As for cleaning or maintenance, I can’t advise as the sensor is high up on a gutter on my roof. I will see what happens when we get a dry spell.

@franz -After the 8th activation/deactivation notification in the first day, I’ve decided to turn off the sensor in the app until I can get a tall ladder and reach the sensor to take it apart and clean it. Thanks for your help.

I too am having issue with rain sensor. I have a Hunter Mini-Clik sensor which is hardwired to controller. SC and S1 connections. The unit is new and tested with Resistance meter for NC switch setup. I think the new controller has some issues or the software. Need some tech support.

Hey @Bgman - Can you post photos of your wiring? That would be helpful in diagnosing this issue. @Loganrun are you having issues with a Rachio 3 or a Gen 2 controller? Wiring photos would be helpful here too. McKynzee :rachio:

[8610] ![6020|281x499](upload://tF21I2zXlWQC9gHiGZ9 [Rachio 3 rain sensor setup] hlWZiWuQ.jpg)

@Loganrun Move that black wire to 24 VAC - and you should be good. More information here --> https://support.rachio.com/hc/en-us/articles/360003078653-How-do-I-install-a-wired-sensor-with-Rachio-3-

@timber - I’m experiencing the same problem and thought that my rain sensor needs to be cleaned. Could it be a wiring issue as well? I wired as per the FAQ and the picture below. [image]

@Bgman can you post a picture of your setup? Just helps to see the actual wires.

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