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I have a navien npe. I'm getting an error code E438. I have
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Matt, I was doing some research and stumbled across your
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I have a Navien NR240 and get the 03 002 error message and
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I have a Navien model 180A LP tankless hot water heater. A
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I have a navien water heater that reads error code 38, it says
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