I had to move my Bradford gas water heater ,when I moved it back i get a howling sound.Removing the pilot window plate stops the noise but what could be causing it?

  • What else did you do? – Solar Mike Jun 21 '19 at 12:21
  • 2
    Sounds like intake air noise. What's the situation there? Help us help you. – isherwood Jun 21 '19 at 12:42
  • I removed the heat diffuser because of vibration,I got that to stop but then the whistling-howling started – caaa Jun 23 '19 at 6:42

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