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View Full Version : My furnace only blows out cold air


andyman1968
Dec 6, 2011, 03:05 AM
I have me furnace on auto fan, I put it on 720 and its just blowing out cold air.it worked find last night I turned it down to 66 went ot bed woke up and it was freezing at 62.what could be the problem

augitorres
Jan 14, 2013, 01:44 PM
Why is my furnace blowing cold air.