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Hot water heater is making a moaning noi...




By mark_harvey on Nov 09, 2009

" "
hot water heater is making a moaning noise in the night.pressure is ok, rads have been bled & pump motor is quiet......any ideas?

Clarification Request

Posted by adamsaire on Nov 10, 2009

What do you mean by moaning? What is your system water pressure? How many levels in the building?

Solution #1

posted on Nov 12, 2009
Not Rated)

heatman101

Rank: Guru  Air Conditioners  Expert
Rating: 92%, 46 votes
You are hearing the pipes either expanding or contracting as they heat up or cool down. See if you can find where the pipe is rubbing a board or wall as it moves. this makes that sound.
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