Hayward H400 FD Pool Heater SF ERROR Code (Temperature sensor Replacement) DIY
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Hayward pool heater was giving me an intermittent error code SF. I bought a Hayward replacement thermistor from an online seller and the swap was easy. There were no videos on YT so I figured I would make one
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Excellent video! I started seeing a similar SF error code on my H250. While there's information online telling the root cause and fix, there was nothing I could find with images or video. Your video gave me the confidence to open it up and try to take care of it myself. Thanks!