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Jim Neargarder.
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August 15, 2023 at 6:33 am #82044::
Unit has been working properly for 4 years.
Suddenly – ‘No AC’I’ve tested everything, but it still shows ‘No AC’
– checked the circuit breaker
– checked the GFI outlet
– Opened the unit and checked the incoming ac
– Opened the unit and checked the convert 26v output to board
All power tests show no issues– Tried ‘reset’ button – does nothing
– changed batteryWhen I disconnect the display panel ribbon cable, the display is exactly the same – all blank except for ‘No AC’
Can anyone offer some help?
November 8, 2023 at 12:42 pm #82179::I have the same problem with the 6 zone. The power transformer is putting out 29V AC to the power board. The power board has a fuse. It looks like a yellow capacitor but it is a fuse. You may want to check that. Mine was not blown. I have purchased a replacement powerboard on eBay for $19 and am waiting for delivery. I am guessing the board is bad since I cannot find any data on troubleshooting the power board. I will let you know if it fixes the problem… if it doesn’t I am anticipating having to purchase a completely now unit.
November 9, 2023 at 10:08 am #82185November 10, 2023 at 12:54 pm #82193::I just tried out the replacement Power board and the controller now works. In doing some comparisons I think the bad board has a bad Diode labeled D2. it is next to the L1. It is a B160 surface mount diode. I have attached a detail PDF of the diode. If I can find one I will try and replace the one on the board…
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You must be logged in to view attached files.December 11, 2023 at 10:59 am #82207April 25, 2024 at 9:23 am #82413April 25, 2024 at 11:01 am #82415::I just had the same problem with my 6 station sprinkler controller #57946. “NO AC”. I called Orbit customer support at 800-488-6156 and made a warrantee claim. This was after I tried disconnecting the power for 30 seconds, unplug the ribbon connecter, press reset, replace the battery… They asked me how long I’ve had the unit and I told them I’m not sure but it’s “more than a year”. And Orbit stood behind their product and provided a warrantee discount code where I was able to purchase a replacement online at orbit online.com at no charge. Outstanding product support! I suspect there may be a hidden warrantee with this “NO AC” issue. As some have said, there seems to be a circuit weakness in the 2 diodes that eventually fail after several years. I’m a happy customer!
June 8, 2024 at 5:53 pm #82492June 20, 2024 at 3:54 pm #82507July 6, 2024 at 9:47 am #82527::I have a 6 zone unit, same problem – controller just stopped working, started displaying AC Only. About 3 years old so when I spoke with tech support and went through their troublehshooting was offered the 30% discount. I’m similarly going to consider Rachio (discount through my water company) – while the tech was very polite, I also don’t want to replace these every 3 years, and seeing that others had the same issue, I suspect its a defect.
March 27, 2025 at 3:06 pm #83453::This is the 3rd Orbit B-hyve 12-zone smart Indoor/Outdoor Sprinkler Controller I have purchased in the last 8 years.
The first 2 have blown voltage regular chips on the WT-25 Power Boards.
The Surface Mount Voltage Regulator chip has BN0H written on the top of it. Google thinks the replacement part is the SCT 2230, but google isn’t always right.
If anyone has a replacement part, please respond. -
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