marketu
Jun 20, 2009, 05:48 PM
My furnace is 8 yrs old, forced air. Turned on air conditioner today, it is whistling? Never did before.
Joshdta
Jun 20, 2009, 05:51 PM
Look for a door lose or a tape seem lose. You have some air coming from somewhere it was not before. If you can not find any thing it may be the blower motor its self.
siberianair
Jun 21, 2009, 05:41 AM
Also change your filter... it could be clogged or dirty or not sitting in there correctly and causing airflow to change.