Just had my AC compressor replaced and the system recharged. Now the AC will work really good and blow air that is around 45-50* then after awhile it will start blowing warmer air. If I shut the AC off and try it again after half hour or so it will work. Also, some times it will work all day and other times it will work for 1/2 hour at a time. Any ideas?
ETA. this happens while driving down the road, I don't usually run the AC while sitting because I get tired of the fan cycling.
AC keeps cutting out
Discussion in 'Trucks [ Eighteen Wheelers ]' started by gunner76, Jul 19, 2016.
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Probably the trinary switch is bad. This is what makes the unit cycle on and off when the pressure is too high or too low. You can Google a picture of it. It's usually near or on top of the air dryer. They have a connection that's really hard to get on right. The shop may have replaced your air dryer and not put the connector back on good enough. While your truck is running and the AC compressor is not kicking on try putting pressure on the connection on top of the trinary switch.
gunner76 Thanks this. -
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