Question about 2000 Chevrolet Silverado 1500
When i turn the heat on it works but the transfer switch is stuck on defrost. I guess in the winter time defrost is the best place for it to be stuck because that is necessary ,during bad cold weather, for operation. However in the summer time i can't turn it off the defrost windshield position to send cold air out of the dash vents and it becomes a "sweat box" please help because until i get it fixed my wife will not get in it in the summer and i'll be forced to take her honda
Our temperature control actuator is bad. It's a little motor that moves the temp door. They are about $70 at the dealer. To change it you need to remove the knee trim panel on the passenger side (3 screws, 7mm socket). The actuator is in the center above the transmission hump. It has one harness plugged into it and 2 screws (5.5 mm). Take the screws out and it should drop straight down. Align the actuator with the lever on the door and put the screws in. Plug the harness back in. Turn your temp control to cold and remove the HVAC 1 fuse. Should be in the fuse panel on the drivers side of the dash. Turn your key to run and leave it on for at least 1 minute. Turn your key back off and put the fuse back in.
P.S. The trim panel is a PITA to get off, so while you have it off check to see if you have the cabin air filters and change them while you are under there.
Also there is an article in the Tech Corner on changing the cabin air filters.
Posted on Jun 04, 2017
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Posted on Jan 02, 2017
I think you are experiencing normal condensation,
try putting the heat and AC control to the position that blows a small amount of conditioned air up through the defrosters. This dries the windshield.
Good Luck !!!!!!!!!!!!
Posted on Jun 03, 2010
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