Why cant i turn off the AC/Heating system completely

mc2032 · October 12, 2015

I posted this same topic shortly after I purchased my new '14 Silverado work truck. During temperatures where neither a/c or heat is required, if you opt for recirculated air (pretend you are driving past a miles long feedlot in western Kansas) the a/c compressor comes on you have to turn up the temp knob to override the a/c cold air. There is no real "off", you either get outside air or conditioned recirculated inside air. With gas prices back near 2 bucks it's not a real big concern, but let gas prices get back up to 4 bucks, you bet I am going to figure out how to shut the compressor off when not needed.

onedash · October 13, 2015

I posted this same topic shortly after I purchased my new '14 Silverado work truck. During temperatures where neither a/c or heat is required, if you opt for recirculated air (pretend you are driving past a miles long feedlot in western Kansas) the a/c compressor comes on you have to turn up the temp knob to override the a/c cold air. There is no real "off", you either get outside air or conditioned recirculated inside air. With gas prices back near 2 bucks it's not a real big concern, but let gas prices get back up to 4 bucks, you bet I am going to figure out how to shut the compressor off when not needed.

Press the AC button so the light is off and the compressor will not run.

tnchevy · October 13, 2015

That is not the case with mine. I turn off the AC button but as long as the system is in auto recirc mode then the AC is running.

TJay74 · October 14, 2015

I posted this same topic shortly after I purchased my new '14 Silverado work truck. During temperatures where neither a/c or heat is required, if you opt for recirculated air (pretend you are driving past a miles long feedlot in western Kansas) the a/c compressor comes on you have to turn up the temp knob to override the a/c cold air. There is no real "off", you either get outside air or conditioned recirculated inside air. With gas prices back near 2 bucks it's not a real big concern, but let gas prices get back up to 4 bucks, you bet I am going to figure out how to shut the compressor off when not needed.

If your truck is a 2014 take it in and have the update done to the HVAC control module, it will correct the issue.