No air

[Rfw1955]

2005 beaver in storage receive a call the coach is sitting down when the person starts the engine the engine cat 400 does not build up pressure is a air governor I never changed the filter on the air drier anyone have an opinion ?

[bdpreece]

Is it cold enough for the air lines to have frozen water in them?

[Rfw1955]

Thanks for the reply the coach is in a warm building I,m not sure if it is a air governor or the air filter on the air drier.

[bdpreece]

I doubt that the filter would go from working fine to totally plugged. When the engine is running can the person hear any air escaping while walking around the coach. I am not familar with your coach but many dump air when parking and in some instances a valve will stick in the open position. If you have an air dump leaver have them cycle it a few times.