Welcome! In this video I replace the control board on my AO Smith Signature 900 Series Hybrid Hot Water Heater as part of my troubleshooting efforts into figuring out why the heat pump keeps cutting off early. More specifically, troubleshooting error code 084.
I’d like to note the board I saw with the FCC label on it would be the wifi module of the control board. Realized that while editing this video.
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WARNING! This video is for entertainment purposes only. Do the actions outlined in this video at home at your own risk.
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