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Loud Hissing / radiator hot when closed

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nsantes
nsantes Member Posts: 1
Hello , I am being woken up to radiator hissing and whistling really loud ! The radiator is closed and it also still gets hot . It’s waking me up early in the morning from the noise . What can I do to stop this loud noise !

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  • ethicalpaul
    ethicalpaul Member Posts: 5,729
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    Do you have control of the system or are you renting?

    Is there a single pipe connected to this radiator?

    Is it a vent that is whistling?
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  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
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    Sounds like your shutoff valve isn't working.
    Much more info needed as eluded to by @ethicalpaul.

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