Cab air vents
Postmaster
Joined: Apr 2003
Posts: 2,703
Likes: 4
From: Harrisburg, NE
most likely in the controls. can't tell you off the top of my head where the door is, but there is a door somewhere that isn't changing as it should.
another note is that all heaters that have vacuum driven doors are built to automatically go back to defrost in case of a failure so that you can always have the defrosters available.
another note is that all heaters that have vacuum driven doors are built to automatically go back to defrost in case of a failure so that you can always have the defrosters available.
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