A/C all of a sudden doesn't blow cold.

[billysimpson2129]

2015 outdoorsman with 5.7l hemi and my A/C does not blow cold air all of a sudden. Any ideas on what might be going on?

 

[Jeepwalker]

Could be:

1) Blend door actuator not actuating (blocking the cold air path)
2) A/C compressor not turning on/off (fuse/bad wire/shorted comp clutch ..something else)
3) Control panel logic not working properly
4) A/C pressure switch failed ...or roddent chewed press switch wire, etc
5) Low on refrigerant (compressor or line leak)

I would suggest checking the HVAC codes first via the OBD connector with a scanner. Or Autozone/OReilly's can check them if you don't have one. Codes should point you in the direction where to start troubleshooting: Actuator (which one?), press switch, clutch, refrigerant, etc. Then check under hood fuses associated with A/C. Maybe try unhooking the battery in case it's a wierd hvac logic fluke.

Once you unhook the battery you'll loose the codes, so you may want to retrieve them before doing that. If you're not real up on these things, it might be a lot quicker to take it to a shop good with a/c work.

 

[Wirerat]

Check both connections at the compressor. There should be two.

 

[GTyankee]

Post an image of your HVAC Controls

if you have the one with buttons that read PUSH on the knobs, there is a way to test your 4 actuators

 

[GTyankee]

There is another actuator just to the left of the fan, that is not in this image