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I have a high efficiency carrier gas fired furnace.during heating cycle the burners are ignited & when the blower comes on i have a whistling sound.I changed the power vent motor assembly but the noise is still there.It's not from the blower.Any suggestion?

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I would have the the burners cleaned, you may be hearing a clog starting to form at the valve on the furnace.

Posted on Jul 06, 2008

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