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Cast Iron boiler trouble

What would be the cause of a hot water boiler short cycling with a high pitch "whistling" noise and shutting down immediately, within 5 seconds?   

Comments

  • 4Johnpipe4Johnpipe Posts: 474
    edited April 2014
    Whistler

    It sounds like 2 issues...first no water flow / bad circulator...and second more dangerous no or low water in the boiler. Shut off asap! Especially if you do not have a properly installed low water cut off.
    LANGAN'S PLUMBING & HEATING LLC
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  • where is the noise coming from

    what kind of boiler- gas oil brand model?????
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