My inducer motor bearing was making a ton of noise and likely about to go out so I replaced it. After installing the new inducer motor my furnace will run for 20 to 30 minutes and then throw a pressure switch stuck open error. I tested the pressure switch and it seemed fine; however, since they are relatively inexpensive I replaced it to be sure. The furnace is still throwing the pressure switch error. Everything I've read indicates if there is a problem with the inducer motor or how much air it's moving and/or the pressure switch is actually faulty the furnace will not turn on at all. I haven't been able to find any info where the furnace will run for a significant amount of time and then throw the error. Could it be the board?
Note: Before replacing the inducer motor the furnace ran without issue...it was just really loud.