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    Heat Pump compressor runs continuously and freezes up coil

    The coil in our Hayward HP21003T heat pump installed around 2009 and heating our 14,000 gal lap pool since we bought the house in 2015 turned into a block of ice a few days ago. The display showed "defrost" mode. I shut down the heat pump, let it thaw out, and started it back up. The...
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