I'm having an issue with my Goodman GDH80904BX. It is not getting power to the draft inducer.

I'm getting 3 blinks indicating that there is an issue withthe pressure switch. I've checked to seeif the pressure switch is stuck in the closed position, and it isn't. I've put a vacuum on it and it closed thecircuit, and when vacuum released the circuit opened. While the pressure switch is hooked to thesystem, when a vacuum is put onto the pressure switch, the light goes to solidon. Once the vacuum is taken away, thelight continues to blink 3 times.

I've also checked to see if the C to W are getting goodcurrent, and it is.

Does anyone have any suggestions of what I can check next?

Hi abc and welcome, this wouldn't happen to be a three wire pressure switch would it?

No, just two.

Condensate build up in the vacuum lines, or clogged vents?

https://www.bing.com/videos/search?q=goodman+gdh80904bx.+pressure+switch+vacuu m+line+clogged&view=detail&&mid=5ED3DDF29BD1E2F613BE5ED3DDF29BD1E2F613BE&rvsmid=1CAE4CED9EAE1572CA761CAE4CED9EAE1572CA76&fsscr=0

At about 1:46 he talks about a condensate build up.

https://www.bing.com/videos/search?q=goodman+gdh80904bx.+pressure+switch+vacuu m+line+clogged&view=detail&&mid=6E8ED0BD010BDBE8D6126E8ED0BD010BDBE8D612

https://www.bing.com/videos/search?q=unclog+condensate+pressure+switch+vacuum+ line+&view=detail&&mid=45A069899DA6AF896BB845A069899DA6AF896BB8

Thanks, I'll try it out.

Please let us know what you find and how it works.

That wasn't the issue.

Are you still getting the 3 blinking LED light?

If you have done this,

How to Troubleshoot Three LED Flashes on a Goodman Furnace | eHow (http://www.ehow.com/how_12027411_troubleshoot-three-led-flashes-goodman-furnace.html)

Then try this,

Troubleshooting a Goodman Furnace Circuit Board | eHow (http://www.ehow.com/how_12216692_troubleshooting-goodman-furnace-circuit-board.html)