I'm talking about the main blower,my system is only 12 yrs old

Hey guys, I have read all the various questions about blowers and a/c and auto and wiring. My furnace blower stays on all the time and I can't find a "Fan" switch anywhere. I see that I only have two black and white wires into my thermostat and gawd only knows what the limit switch looks like and...

My blower will not run it just makes a loud humming sound I'm sure I may need to replace it. And I know I can but I don’t know where to start to look for the part new or used

When the blower starts up it seems to have a hard time getting started. (makes a noise like: wa... wa... wa.. wa) and then runs normally. Doesn't do this every time but maybe one out of four starts. Is motor going or some other reason? Thanks

I have a York furnace and ac unit. The blower won't come on. :mad: The blower motor works I found that no power was going to the blower so I by passed it to stay on all the time. :cool: What I need to know know is what is causing it there is a Honeywell circuit board (ST9120b 1005)...