how do I wire an inline fan to the hvac blower

tomate10 · 05-27-2008, 12:28 PM

I have a bdp furnace. I am trying to wire an inline fan to the blower, but cant. I ran the hot wire and spliced it to the HI wire of the blower, right to the motor.... however, when I turn the A/c off, the inline fan turns on. When I turn the A/C on, the inline fan turns off....

I know I have it wired to the HOt of the blower motor, and the common wire I wired to the common wire of an outlet.

Also, if I have the A/c on and i pull the blower cover, the A/c shuts off, but the inline fan starts (door switch activates)...

I need help, any thoughts??? I really appreciate it.

kok328 · 06-02-2008, 10:49 AM

I'm not totally comfortable w/what I'm reading in regards to where the neutral for the inline fan is coming from. You just can't grap a hot here and a neutral there. As far as the remainder of the setup, you haven't really stated a problem here. What are you trying to achieve (when is the inline suppose to run and not run)?