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Thanks for the reply Dale3.. Yes it makes the same noise with just fan sw on.Its definitely coming from the blower.The noise kicks down when the blower kicks down to low stage.. Checked all registers...

Just had a new Rheem Classic 90 plus furnace installed.. I noticed that the blower seems to make a high pitch noise that emulates through the ducts.Not as bad in the bedrooms upstairs.I pointed the...