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Loud Buzzing Noise From Boiler

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Rich Anderson

I have an intermitent buzzing noise that is coming from my boiler. The sound is coming from behind the door panel in the vicinity of where the flame occurs. The only other electronics in this area is the gas control valve and the main control panel module. The sounds seems like it may be coming from the gas control valve itself. Has anyone seen this before or know what the problem may be? I took a video of sound and can be viewed below. It is a Weil-Mclain CGA-4 boiler that is 5 years old.

 

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