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Navien NHB-110 Pressure relief valve

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dreLaHaie
dreLaHaie Member Posts: 1
in Radiant Heating
Pressure relief valve is releasing about a half a gallon of water every 2 hours. Is there a way to stop this? I called Navien technical support and since I'm the homeowner he told me that I had to have a technician come out to look at it and then call them back.

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  • Jamie Hall
    Jamie Hall Member Posts: 23,283
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    Hot water heat? There's a very good chance that the expansion tank has failed, or has otherwise lost its air charge, or even that someone valved it off the system. Very unlikely to have anything to do with the boiler at all -- although with the pressure relief valve operating that much, you'll likely want to replace it when you get the real problem fixed.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,520
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    @dreLaHaie

    Your going to have to call someone in. Shouldn't have to be a Navien contractor for that issue. You could check "find a contractor" on this site

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