2002 AC Problem
Senior User
Joined: Aug 2004
Posts: 352
Likes: 0
From: Waukesha, WI
The compressor will run if you put on the defroster, even on heat. Pulls the humidity out of the air. Many cars have done this since the 70's, maybe longer.
Moderator
Joined: Jan 2004
Posts: 13,851
Likes: 111
From: SW Va
Welcome to FTE.
What you've described is a normal function for the AC compressor & what you've found that it doesn't run in Vent, is the only position the compressor doesn't run & is how its factory wired.
Below a certain temp in winter the compressor won't run at all, but when the temp warms up above that set point (your owners manual gives that set point), it'll run. Keeps the windows from fogging up & circulates the ac lube in the off seasons to keep the seals & gaskets happy so they don't dry out & leak so fast.
What you've described is a normal function for the AC compressor & what you've found that it doesn't run in Vent, is the only position the compressor doesn't run & is how its factory wired.
Below a certain temp in winter the compressor won't run at all, but when the temp warms up above that set point (your owners manual gives that set point), it'll run. Keeps the windows from fogging up & circulates the ac lube in the off seasons to keep the seals & gaskets happy so they don't dry out & leak so fast.
Thread
Thread Starter
Forum
Replies
Last Post
1great40
1983 - 2012 Ranger & B-Series
3
Sep 16, 2012 07:05 PM
894605SPD
1987 - 1996 F150 & Larger F-Series Trucks
0
Aug 23, 2008 11:01 PM
Bad Company
1999 - 2003 7.3L Power Stroke Diesel
11
Mar 28, 2005 11:36 PM
