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Whistling Boiler
Nilsonov
Member Posts: 1
in Gas Heating
I have a Utica MGB1252 residential forced water boiler that started whistling after a tech replaced the gas valve (replaced to get rid of that valves failed Mercury Flame sensor). After replacement the main burner whistles exactly like in this video (jump to 1:00) - https://www.youtube.com/watch?v=gmDIcN75w7M . He couldn't figure out why but and neither can I after researching this for some time. Any ideas?
Thanks
Thanks
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Comments
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You need to take a manifold pressure reading and set it right, usually 3.5" w.c.Contact John "JohnNY" Cataneo, NYC Master Plumber, Lic 1784
Consulting & Troubleshooting
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Yes, first place to start on pretty much any gas appliance is set the manifold pressure to spec. That may relieve the noise, then do a combustion setup with an analyzer. Assuming the HX has been cleaned (if applicable).Serving Northern Maine HVAC & Controls. I burn wood, it smells good!0
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Take the pressure on the supply side at static and while firing as well..
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