I think my HVAC has low air flow at vents. I have cleaned blower fan and replaced filter. Motor rotates by hand freely. Connections tight. Could this be bad run capacitor?

Quote:

---

Originally Posted by arejohn

I think my HVAC has low air flow at vents. I have cleaned blower fan and replaced filter. Motor rotates by hand freely. Connections tight. Could this be bad run capacitor?

---

It is possible that the capacitor is weak but you will need a tester to be sure or just replace the capacitor with a like same value.

It is also possible that if you have a A/C coil in your furnace the back side could have got dirty over time.