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  • August 20, 2024 at 10:57 pm in reply to: Power supply diode D2 shorted on OpenSprinkler 3.2 Power Bd #79958

    Jason
    Participant

    I changed D2 to a SS36 and it solved the problem. I think the extreme heat in our garage just degraded it over the years.

    August 19, 2024 at 1:55 pm in reply to: Power supply diode D2 shorted on OpenSprinkler 3.2 Power Bd #79944

    Jason
    Participant

    I desoldered D2 and it measures roughly 1 ohm in both directions. My DMM doesn’t have a diode test mode, so just testing with resistance mode. The main controller board boots up if I remove the power board and connect 5V/GND. Since the diode is effectively a short circuit, it seems to definitely be damaged. I don’t know the cause of the problem though. I’ll do some more testing.

    August 19, 2024 at 11:31 am in reply to: Power supply diode D2 shorted on OpenSprinkler 3.2 Power Bd #79939

    Jason
    Participant

    I woke up to the same problem today. I don’t know of any specific cause, other than the temperature in our garage being extremely hot the last few days. I could feel D2 getting extremely hot. Did replacing D2 solve the problem for you?

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Viewing 3 posts - 1 through 3 (of 3 total)