We recently had to replace the blower motor, fan, and capacitor in our furnace. The furnace is blowing air but not sufficient to actually heat the house. Any suggestions on what this new problem maybe?

It is Heil Quaker (sub of Whirlpool). Model number: NUGJ100F01

Is the blower running backward? You may have to open access panel to view rotation. If motor is reversible, it may have been set incorrectly during installation.

That was the problem. Thank you very much!!