Community Home Community B-hyve Underground No AC – B-hyve 12 zone suddenly shows No AC

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  • #82044
    weh
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    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 battery

    When I disconnect the display panel ribbon cable, the display is exactly the same – all blank except for ‘No AC’

    Can anyone offer some help?

    #82179
    [email protected]
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    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.

    #82185
    weh
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    I ended up buying a new unit, although I still have my old one.

    Please update when you have your solution – perhaps my old board is salvageable/replaceable – thanks

    #82193
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    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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    #82207
    [email protected]
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    how difficult is it to replace that power board? I’m not so great at electronics. but if it’s plug and play….
    thanks!

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