Resolution: The first and most simple thing you can do is to replace your cabin air filter. If replacing the filter doesn't fix the issue, the system could be low on refrigerant or overcharged. In either case, a technician will have to inspect and attempt to duplicate the issue.
If airflow is weak in all vents, then your blower motor may need to be replaced. Also, check with the AC on and off and with different temperature settings. A bad blower motor will most likely have weak airflow no matter what temperature settings you choose.
One of the most common culprits behind an A/C system blowing warm air is a low refrigerant level. Refrigerant is responsible for absorbing heat from the cabin and releasing it outside, creating cool air. Over time, your car's A/C system may develop leaks, resulting in a loss of refrigerant.
Resolution: The first and most simple thing you can do is to replace your cabin air filter. If replacing the filter doesn't fix the issue, the system could be low on refrigerant or overcharged. In either case, a technician will have to inspect and attempt to duplicate the issue.
An AC leak will lead to warmer air from your vents over time. In most cases this can be fixed with a proven stop leak additive to seal up any leaks. When it's time for an AC recharge, turn to AutoZone.
One of the most obvious signs that your vehicle needs a Freon recharge is that your vehicle will be blowing warm air, even after your vehicle has been running for some time. If your refrigerant gets too low, there will simply not be enough “coolant” to cool the air as it is passed through your evaporator coil.
If you've noticed that your car's AC system isn't as cool as it once was, start by troubleshooting issues you can take care of at home. Replace the air filters, clean the ducts and recharge the system. After that, if you're still having problems with the AC, bring your car to a mechanic.
There are a number of reasons why your air conditioner might be running but not cooling. It could be an issue with the thermostat, the compressor, or the evaporator coils. Or, it could simply be clogged with dust and debris, which is preventing it from working properly.
Lots of things can cause your blower to have trouble, especially if it gets too dirty. A fan clogged by dirt, a stuck wheel, broken motor, or a loose fan belt are all common problems that reduce the amount of airflow you feel coming from your vents. How to fix: Call an AC tech to examine and fix the blower.
To resolve weak airflow issues, it is recommended to: check and replace air filters regularly. clear any obstructions near vents or registers. inspect and maintain the blower motor.
If your AC's filter is clogged, you'll either need to clean or replace it. If your filter isn't the problem, your air duct could be the source of the clog—or it might be leaking air. Either scenario can keep you from getting the airflow you want from your grilles or registers.
Your AC is not supposed to break down. But sometimes it does. The AC compressor is one of the problems that could cause your AC to fail. As the main mechanical component in the system, it serves as the heart that pumps refrigerant to and through all of the other AC components.
We recommend getting a quote from a reputable mechanic or auto shop before having your car's A/C system inspected. The average costs for common A/C car repair services are: A/C Repair – $384 to $445. A/C Compressor Replacement – $1,546 to $1,705.
Common Reasons AC Doesn't Run Cold
The most common causes of broken air conditioning leaks or compression issues. If you are feeling cool — but not cold — air, the issue could be a clogged filter, a problem with the cooling fan, signs of radiator trouble, or it could simply mean it's time to recharge your AC.
It's recommended that you recharge the air conditioning in your car every two years, to keep the cooling power at its highest. This keeps the refrigerant loss to around 14%. This means if we are recharging a system that holds 25oz you would only be purchasing 3.5oz of refrigerant.
What is the average cost of a car AC recharge? The average cost of a car AC recharge can range from $100 to $300, depending on the vehicle and location.
Freon is contained within your vehicle's AC system, as in completely confined within, so Freon's loss isn't through consumption but through leaks that eventually develop within hoses and connections.
In modern cars there is no real way to check the level. To get the most accurate level or amount, you have to have a recovery machine remove all the freon and measure the amount removed then compare that to what is supposed to be in the system.
Before releasing the refrigerant into the port, turn on the vehicle and turn the AC on to its max temperature.
Low pressure in the system can occur when there is not enough refrigerant in the lines. This results in an inefficient cooling process, which can cause warm air to blow instead of cold. Refrigerant leaks could be caused by something as simple as a loose connection or a more serious issue like condenser failure.
Most cars hold between 28 and 32 ounces of refrigerant (or about 2—3 12oz cans), however larger vehicles and those with rear A/C will likely hold more. Check your vehicle manual for the system capacity for your specific vehicle.