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Thread: heater signal

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    heater signal

    hello - just had a new heater installed - hayward 350. very happy with it. I'm getting a low flow signal on the screen. what could be causing this?
    27ft Round Above Ground Pool 17,000 Gallons
    Sand Filter
    Direct Sunlight All Day

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: heater signal

    Welcome to TFP!

    If the heater isn't getting enough water flow it can give that error. The most common cause would be if the filter was dirty. Try backwashing or cleaning the filter. This error can also indicate that there is some kind of a blockage somewhere else in the plumbing or that a valve is set incorrectly, depending on your setup.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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