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Thread: Raypak 401a

  1. Back To Top    #1

    Join Date
    Apr 2010
    Central NJ

    Raypak 401a

    I recently purchased a Raypak 401a and I noticed that it does one metal bang after about 10 minutes after firing up and another one lesser one a few minutes after it shuts off. I had the installers come and take a look at it and they say that's normal for this heater as this is the metal expanding and contracting and that it will go away with time. is this normal? There are no codes and the heaters runs perfectly.
    23K gallon, IG, Vinyl, Hayward DE-3600 Filter, Raypak 406A Heater, Hayward 1.5HP SP2610X15 pump aka AO Smith UST1152, TF-100 Test Kit

  2. Back To Top    #2

    In the Industry
    ps0303's Avatar
    Join Date
    Jul 2011

    Re: Raypak 401a

    I bet it's the bottom floor plate. Yes sometimes this does happen.

    A word of caution: When working with gas and electrical you might want to consider a licensed contractor. Consider the value of your life and others around you.

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