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What Causes Not To Have Hot Water Pressure On A Hot Water Boiler?

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    Your water pressure in a boiler is determined by your inlet water pressure to the house. If you have plenty of cold water pressure but not hot, it indicates the tankless coil is plugged or partially plugged. Have a plumber douche the coil with coil cleaner to open up the inside of the coil. If your coil was rotted or had a hole in it you would be getting 180 degree water temp at the tap. Sounds to me like its plugged.
    0 0

    Septic  

    answered 6 months ago

    Also check to see if all valves are open on the hot side. If you have kids, they may have played with them.
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    Septic

    Septic

    commented 6 months ago

      Bad elements, thermocouple, thermostat
      0 0

      T-wright  

      answered 6 months ago

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