OK, going to do that now. I'll be right back.

I'm going to take you through a few steps and see if we can figure it out.

Any luck?

Hey Hvac
I did what you suggested, took the black rubber tube off the furnace, and water poured out of it, and also came out of the furnace front. It is still coming out, so I want to go back down there, I have it going into a little water bottle.
I was surprised to see water coming out. Did I do something wrong?

At least the water is nice and warm.

OK, I think it is done draining. I think at least 3 cups of water came out of the front of the furnace.
Do I plug it back in now?

No,you unhooked the drain not the pressure switch tube,but that's OK

Try blowing through the tube you have unhooked,is it restricted?

The pressure switch tube is about a 1/4 inch rubber tube. Lets skip the pressure switch for now. Hook the drain back up.

Oh,
I tried to blow through it. I heard a tiny pop, then nothing. I can't blow through it.

What is the other end connected to?

It comes out the back of the pressure switch and goes into the front of the furnace right at the bottom of the main compartment, it goes into a flat black plastic plate that is on the front of the furnace.
I didn't see another tube that went from the pressure switches to the front of the furnace. Maybe I'm not understanding what you mean.

I'm looking at my diagram of the furnace. The tube come sout of the back of the pressure switch, goes to the side of the heat exchanger I think it is and plugs into the wall that is at the front of the furnace, right at the bottom, inside the main compartment. I wish I could upload a picture so I could show you.

Do you see the inducer fan? Located in the top compartment of the furnace.

You can upload a photo,that may help.

Is that the big round plastic cover right behind the inducer motor? I see it

OK, let me geta good photo, b right back

Do you see any small tubes going to the inducer fan?

Hi,
I have my photo, don't see how to upload it. Let me go look at the inducer fan again. I don't remember a little tube.

Hit the go advanced button at the bottom, you cadd attachments