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Thread: Hayward heater making loud banging noise

  1. Back To Top    #1

    Join Date
    Jul 2008
    austin, tx

    Hayward heater making loud banging noise

    Hi there all,
    I've been using my heater on and off for the last 2 months or so. Just the other day, I turned it on and after about 5 minutes of run time it started rattling and making a loud banging noise. I immediately turned the heater off and it the noise stopped, but the pump was still running. Any ideas as to what could be going on in there?

    15,000 Gal IG Plaster
    Hayward Sand Filter
    Hayward 1.0 HP Pump
    Hayward H Series Heater
    Really OLD Polaris Pool Cleaner

  2. Back To Top    #2
    spishex's Avatar
    Join Date
    Oct 2008
    Hillsborough, NC

    Re: Hayward heater making loud banging noise

    It's probably overheating due to inadequate water flow. Try backwashing your filter or running on recirculate and see if it still happens.

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