New Navien NPE 240a NG screaming


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Old 12-22-18, 03:57 AM
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New Navien NPE 240a NG screaming

I have a New Navien water heater installed yesterday and it is making a ear piercing sound every 12min. The company that installed it is not a 24hr plumbing company. I had to turn it off. Now I don't have hot water. Any suggestions would be appreciated. Thanks in advance and happy holidays
 
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Old 12-22-18, 10:45 AM
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Welcome to the forums.

I have no idea what's making that heater scream but I do know it's very expensive and your installer should be looking at it. I'm not sure if I'd be with a Mon-Fri 9-5 plumbing company. All my plumber friends have emergency numbers for their customers.
 
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Old 12-22-18, 01:46 PM
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Old 12-22-18, 02:13 PM
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Great link. Thanks Steve. Name:  smiley-thumb - S.gif
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