2002 Hyundai Sante fe v6 ac wont Come on

06-14-2011, 02:31 AM
Freon levels are good , You can ground the relay works great . Its like when you push the ac button , its not grounding the relay ? Any ideals , Iam thinking the control heads bad . Thanks

06-30-2011, 08:39 PM
You say the freon levels are good - what pressure shows on the manifold gauges? If it's over about 35-45 PSI, the suction pressure switch is probably closed. If the pressure is low (around 20 PSI or less), it could be open.

Our cars are known for developing problems with the A/C fan switch on the control panel after about 8-10 years. The switch also allows the compressor controls to work since you need to turn the fan on to get it to work. A bad fan switch is quite possible.

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