I purchased this 16 zones 2nd generation few days ago and everything was working fine until today. The first 8 zones are no longer working. I checked the voltage on a specific zone (i.e. Zone 4) when ran manually and it shows 24v but it also shows 24v on all 8 zones! If I manually run zone 9, only …

@emil and @DLane Issue has been resolved. Removed the culprit Rain Sensor and now everything is back to normal! I’d like to give my thumbs up to the the community / support team for been very responsive :grin: Thank you again.

@Tmg33 - Hmmm, interesting. As you’ve already tried a power cycle/reset - ping @mckynzee or @emil to check the power levels that the Rachio unit is reporting out from their side. Or call in to their support number.

[image] Tmg33: The first 8 zones are no longer working. @Tmg33 , looking at your controller logs, the electrical currents reported for zones 1-8 indicate you might have a cut common wire… [image] Tmg33: If I manually run zone 9, only zone 9 has 24v. Have you attempted to move zone 1 to…

@emil Thanks for the prompt response! how would I have a sudden cut common wire overnight - it doesn’t make sense. Yes the left common on the second bank is for zone 9-13. I will move zone 6 to zone 13 and see if it works - stand by.

@emil - I hate to get electrical on you, but if the common wires are dedicated to those zones then moving zone 1 to zone 9 (or 14) won’t work as there still won’t be a complete connection back. @tmg33 - you could try moving the white wire to the left of zone one to the right of zone 8 to see if it …

[image] DLane: I hate to get electrical on you, but if the common wires are dedicated to those zones then moving zone 1 to zone 9 (or 14) won’t work as there still won’t be a complete connection back. @DLane , touche. You’d need to move both the zone wire and common for a zone from the left si…

@emil @DLane ok I removed everything left and right Bank and then moved the left common and zone 6 to the right bank to become zone 9 … and still nothing. If I add other zones from the original left bank to the right - also none of them are working and all of them are showing 24v when only one zone …

@tmg33 - Sounds like a wiring issue. One last test to confirm. Take the common that was originally on the right side (since you’ve removed everything from that side too), put it in the C terminal that is next to zone 1. Then put the wire that was originally in zone 10 to zone 1 and see if you can…

@Dlane @Emil Something doesn’t add up. If everything works and suddenly a set of zone no longer work (on the same common wire) - The logic would be the common wire but nothing was touched inside or outside other than very heavy downpour a day before. I will switch the common wire right bank + zone…

@tmg33 - Since you mentioned it rained, out of curiosity, do you have a rain sensor that is installed inline on the common wire? That was the case for this user -> Manual run after a rain skip and it prevented the zones from running. That is how my and that user’s rain sensor was installed on an o…

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Half of 16 zones are suddenly not working