Most likely your AC system is simply getting inefficient and having trouble cooling unless there is an excess air flow over the condenser, like when you are driving. I live in Cali where it is always at least warm. Hi, i am having hyundai Accent 2007, from few days i noticed that my car is giving ice cold air at the start after few miles of drive it start giving warm air, i noticed that ac clutch is engaged but still there is no cold air and even the ac pipes are warm but at the start they were chilled. but the sound just happened recently so I am unsure. When its very hot outside the car blows hot air. As for your air conditioning, if your system has an abnormally high low side pressure when the compressor is cycling then your system is either overfilled or your compressor isn’t doing its job very well and will need to be replaced. besides a failed compressor, it may be that you have a clog somewhere in your system or that the compressor is not getting the signal to turn on when you press the button. The unusually high pressure may be due to your system being over filled with refrigerant or a clog somewhere in the system. It sounds like you may be low on refrigerant which normally means you have a leak in the system. My when i turn my air on it blows hot air. I do not understand how this happen since it was working great last summer. When I rev the motor the clicking gets faster, a.c. off no click. It hasn’t helped. We recommend using the Red Angel A/C Refrigerant Stop Leak to stop the loss of refrigerant and return the system to blowing cool at all times of the day. could this be Ac regulator or switch if so where is it? Please advise. Before you zip down to the dealership and pay for a vehicle inspection to figure out why your car’s air conditioner is not blowing cold air, try checking a few common easy to fix problems listed below. We recommend using the Red Angel A/C Stop Leak (http://store.gobdp.com/a-c-stop-leak-aerosol-00222/) to help stop the loss of refrigerant and get the system back to normal functionality. I can turn car off then on and it will fix temporarily. The fact that the fuses keep blowing leads us to believe you have a short somewhere in the wiring that controls your compressor. Hello, If you cannot figure out where the problem is coming from yourself, hopefully a mechanic can help you track down the loose connection. These can be difficult to diagnose so it may be worth taking your car to a mechanic for help. I tried recharging it with the can ,but still no cold air? Also, if your AC fans are not coming on, it could be causing your air conditioning system to cool very slowly or not at all until your vehicle is driving at higher speeds. Our recommendation would be to have the vehicle looked at by an A/C specialist. Can you please help me solve the problem? The blend door is controlled by an electric actuator so it is possible there is a short in that electrical system or something causing it to stick. There is a possibility you still have a problem with your air conditioning system, like a clog in the expansion valve or orifice tube. It started blowing hot ac when I turned it on about 4-5 months ago and I had an ac recharge in addition to a leak detector (ink). 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