I had to replace my furnace about 3 years ago. Now the Atwood Model 8535-IV DCLP has a error message--Limit Switch/Airflow problem. I am starting to explore the inner workings to find the air intake. I have removed the wooden grill at the base of my stairs to the bedroom--not visible on the floor level. So, I am going to go into the basement and remove the wall to see what I can find. Any suggestions? I have a 2006 Monty--3475. Just keep fixin!
The furnace has not been used in more than a year--so something probably moved in!