How Do You Fix an Overcharged Car AC?

If your car’s air conditioner is overcharged, it can cause a number of problems. The compressor may burn out. The rest of the system will begin to wear out prematurely. Third, if you’re not careful with your repairs, you could end up causing more damage than necessary and that’s no fun for anyone.

If you’re wondering how to fix an overcharged AC system without causing more damage or spending more money than necessary.

Don’t drain any refrigerant from the system until after it has been repaired by a professional technician. You can help prevent damage from happening by keeping it full as much as possible during repairs.

Make sure you do not mix R12 with R134a or vice versa when refilling your AC system with refrigerant because this can cause an explosion in some cases which could result in death or serious bodily injury if proper safety precautions aren’t taken at all times during the process.

Turn off the car engine

Turn off the car engine. Check the belt and make sure it is not broken or loose. If it is, check that the belt is tightened properly and that the pulley on which it runs is not damaged.

Turn off the car

Turn off the car and let it cool down for 10 minutes. This will give you time to get some water and make sure your windows are closed so that the cool air doesn’t leak out as soon as you turn it back on.

If step 1 doesn’t work, turn off the car and take out the fuse that controls the AC system. The location of this fuse varies depending on what model of the car you have, but they are usually located near where your battery is stored or near where all of your other fuses are stored.

Check the coolant level

If you’re having trouble with your car’s AC, one of the first things you should check is the coolant level. If it’s low, you might need to add more coolant to your car. To check the coolant level, open the hood and look at the reservoir. If it’s empty or just about empty, add a little more coolant to it by pouring it into the reservoir until it’s full.

If there’s already some coolant in there and it still looks low, then there might be something else wrong with your AC system it could be clogged up with dirt or grime that’s preventing the compressor from working properly.

Check the drained battery

The first thing you’re going to want to do is to check the battery. If you have a car with a drained battery, it can actually be pretty common for your AC to get overcharged. If you find that your battery is drained, then it’s time for some serious maintenance and this means that your AC will be out of commission until you get things fixed.

You can use a voltmeter to check the voltage of your battery, but if you don’t have one handy, there are other ways to check it.

Close up all connections

Close up all connections between the outside air intake and the compressor. This will help reduce the amount of pressure inside the system. You might also want to try removing any debris from around the connections if there’s something blocking them up, then this will make it harder for air to get through and could cause even more problems down the line.

Open up all connections between your reservoir tank and other parts of your cooling system.

Turn on the ignition to the

Overcharging the car’s AC is a common problem. It can be caused by a number of different issues, but it can usually be fixed using a few simple steps. Turn on your car’s ignition and wait for it to warm up. Turn on your AC and set the temperature to cool. Turn off the ignition, but leave your AC on.

Wait 20 minutes before turning the ignition back on again. Once your car has reached normal operating temperature, turn off your AC again and wait for it to cool down before turning it back on and adjusting to the heat.


You know how to fix an overcharged car AC. You should also be able to identify the symptoms of an overcharged AC, as well as how to prevent it from happening in the first place. If your car AC isn’t working properly, or if it’s not keeping up with the temperature in your vehicle, don’t hesitate to bring it to a mechanic for a checkup.

Steven Hatman
Steven Hatman

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