I have an Airpro furnace model # G9T10014UPC13A
Everything works fine accept it's blowing at about one fourth the speed. What could it be,
The Motor Run Capacitor or do you think the 4 speed motor is shot or something else?
Any help would be much appreciated since its getting cold in Buffalo and I have a 2yr. Old
Thanks.

Have you checked the furnace filter? How do you know its blowing at 1/4 speed, have you done airflow tests? Check and change filter, then make sure no returns are covered. Lee.

Thanks for the reply mygirlsdad77 but airflow restriction was the first thing I checked. No cold air returns blocked and I removed the air filter completely. The furnace has a 4 speed motor and honestly
I can tell just by the sound its not running full speed. Any help diagnosing would be a great help. Here is a link to the motor when I googled the model number and it also shows the Motor Run Capacitor.

1/2 H.P. 115 Volt 4 Speed Furnace Blower Motor.(York ): American HVAC Parts (http://americanhvacparts.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=MOT2426003&Category_Code=fasco-luxa)

I would start by replacing the capacitor, also check to make sure you are getting 120 volt to motor,, normally the blower will run slower on heat mode vs cooling mode, you may be able up the speed of your motor on heating, depending on your control board and where the wires are currently hooked. Lee.

Capacitor it is! I got away cheeeap this time only $4.62 w/tax. Thanks...

Glad to hear it was a simple fix, good job. Lee.