AC not cooling dealer can't diagnose
08-28-2016, 05:34 AM
#1
JK Newbie
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AC not cooling dealer can't diagnose
Just recently my AC has stopped cooling. Compressor kick on but only cool air comes out not the normal cold. Tired of sweating I dropped it off at the dealer where I bought it. They called at the end of the day to pick it up and said they couldn't find anything wrong since it didn't throw a code. It is a 2015 with 29000 miles. Air has always been really cold until this started. Yesterday I checked with a thermometer and air coming out of vents was 80*. Going back to dealer tomorrow. Any ideas on what it may be since tech is telling me he can't find anything wrong?
08-28-2016, 09:47 AM
#3
JK Enthusiast
Hard to believe the dealership A/C tech can't find anything wrong....
Probably should start with the basics on whether the compressor clutch is engaged, the condenser fan is running, the suction line is sweating or frosted, whether the climate control console is directing the air flow thru the evaporator....
With refrigeration gauge set connected; the suction should be around 38-45 psi and the discharge should be around 235-275 psi. These pressures will vary when the vehicle is being driven and outside air is moving thru the condenser and depending upon what the outside temperatures are and whether the condenser fan is running.
Probably should start with the basics on whether the compressor clutch is engaged, the condenser fan is running, the suction line is sweating or frosted, whether the climate control console is directing the air flow thru the evaporator....
With refrigeration gauge set connected; the suction should be around 38-45 psi and the discharge should be around 235-275 psi. These pressures will vary when the vehicle is being driven and outside air is moving thru the condenser and depending upon what the outside temperatures are and whether the condenser fan is running.
08-28-2016, 10:46 AM
#4
JK Newbie
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The compressor does kick in. One line is hot the other is cool to the touch but not cold. Hopefully tomorrow they figure it out. Last week I left it all day and tech said there wasn't anything wrong.
