A/C will not put out cold air.

My A/C doesn't want to put out cold air. I've tried charging it, but my car says the pressure is fine.

My car has 112000 miles.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :
Hi and thank you for contacting YourMechanic. These AC system are very sensitive and if the pressure isn’t tested with the correct gauge and gives and incorrect reading, this will affect how well the system works. I highly recommend that your AC system be tested by a certified technician to determine the exact cause. If in fact the system pressure is correct, you may have a clogged receiver/dryer, stuck expansion valve, clogged line, the condenser fins may be dirty. A qualified professional from YourMechanic can come to your car’s location to inspect the AC system and follow through with the appropriate repairs.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Reasons a Hyundai Sonata AC Isn`t Working. The most common reasons a Hyundai Sonata ac isn`t working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. You may not realize there`s a refrigerant leak until the air conditioner stops blowing cold.
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.

If your air conditioner is running, but not lowering temperatures inside, one issue could be a blocked or clogged condenser coil. When operating correctly, the condenser fan draws air into the outdoor unit through the condenser coil to pull heat energy out of your home.
Here are some of the most common causes of why air doesn`t flow out of your vehicle`s vents: Your air intake is clogged, meaning that air isn`t getting in from the outside at all or isn`t circulating properly. There is a blown fuse in the ventilation system. Electrical issues such as a bad relay.
If your air handler is running but not blowing air, there are two likely scenarios; either a broken AC blower belt or an issue with the motor itself. If the air handler is humming or buzzing, but not making the mechanical sounds of a motor running, you`re most likely talking about an issue with the motor itself.
Nine times out of 10, weak airflow is caused by a clogged up cabin air filter. Over time, this filter catches all dirt and debris, which can build up and slow or stop the flow of air. It`s typically located under the dash on the passenger side or inside the glove box and should be cleaned or replaced regularly.
With the AC off, the clutch does not spin. When you turn the AC on, the clutch can make a momentary click and starts spinning with the belt and pulley. If the clutch does not engage, or if it makes a screeching or whining sound when it does, the compressor needs to be serviced.
Clogged air filters are one of the most common reasons a thermostat clicks but AC does not turn on. A filter cleans the air before it circulates throughout your home, trapping dirt particles, dust, and pollen. Over time, these contaminants will clog the filter, limiting airflow to the HVAC system or furnace.
Dirty air filters cause your AC to operate at a lower efficiency which means it does not cool your house as well as it should, and can end up costing you more money in the long run.
Installing a new AC capacitor usually costs between $80 and $400, including labor, but most homeowners pay around $190. Several factors can affect these costs. For instance, if you live in a particularly hot region with a high demand for AC technicians, you`ll likely pay more in labor than in cooler regions.
The short answer: You can get away with running your AC without a filter for a short period of time. However, doing so for longer than 6-8 hours can hurt your system and decrease your home`s indoor air quality.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Hot air mixed with cold blows from air conditioning
ANSWER : Hey there. You will most likely have to have a mechanic bypass the heater coolant lines to have this resolved. Your A/C may not be controlling the air flow inside the evaporator correctly out of the vents and may be the blend door actuator stuck in the heat position. Have the AC system diagnosed first before bypassing the heater.

Read Full Q/A … : A/C will not put out cold air.

Cold mist/smoke like air comes out of the air vents when cold air is on.
ANSWER : If you are using regular outside air a/c instead of recirculated air you may be getting a large amount of outside air humidity and can cause a mist to come out of the a/c vents. You should make sure the a/c evaporator drain is cleared and drains freely or the water in the a/c cannot drain fast enough and the blower will pick up the water and blow it out the vents.

Read Full Q/A … : A/C will not put out cold air.

Air conditioning blowing mildly cold air on the coldest setting, turned off/on again, now blowing cold air, should it be checked?
ANSWER : If you are getting ready for a long trip and suspect the cooling fan may be not coming on for the radiator and a/c then you should have the a/c and cooling system performanced checked before trip. Nothing worse than breaking down when out of town in a strange area.

Read Full Q/A … : A/C will not put out cold air.

Car was overheating almost to the red. I turned heater on, first it blew cold air then warm air for just a minute, then cold air.
ANSWER : Hi There,
The heater not working may be related to the overheating problem you are also having due to a faulty heater blower motor or potentially a bad heater core. As you may know, the heater core is a small radiator like unit that circulates the hot coolant from the engine through the heater core which then uses this warm coolant to heat the inside of the car with the help of the blower motor that blows the warm air through the vents inside the car. When the cooling system is not properly circulating coolant through the motor, this results in the warm coolant not being pumped through the heater core properly in order to warm the inside of the vehicle. In some cases there may be air pockets in the heater core which can cause the heating of the inside of the vehicle to fluctuate between warm and cool air erratically.

Engine overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working properly, this can cause the fans to come on intermittently, all the time or sometimes not at all. When this happens you will notice a temperature spike and drop occasionally as the fan comes on and off. When your thermostat is not working properly or is stuck closed, this will not allow the coolant to properly circulate through the engine, which may cause the engine temperature to fluctuate erratically or in some cases just remain hot. As mentioned above, this also restricts the warm coolant from flowing through the heater core which uses this to blow warm air into the cab of the vehicle. I would suggest having an expert from Your Mechanic come to your home to diagnose your cooling system.

Read Full Q/A … : A/C will not put out cold air.

My air is blowing cold-hot-cold-hot-cold-hot…
ANSWER : It is possible that you have a leak in the AC system. There are pressure switches that will turn off the compressor if the pressure is too high or too low. The low refrigerant level could cause the AC compressor to cycle on and off. If you would like to have this done, a certified technician from YourMechanic can come to your car’s location to diagnose the AC system and make the correct repair.

Read Full Q/A … : A/C will not put out cold air.

Air conditioner doesn’t blow cold air
ANSWER : I would recommend having your 2003 Chevrolet Tracker’s condenser checked for hot spots. A hot spot will cause the refrigerant to remain hot, while it passes through that particular part of the condenser. Hot spots are usually caused by restrictions within the condenser.

If a hot spot is found, the condenser will require replacement in order to resolve the issue. In order to find a hot spot, an infrared thermometer will be used. This thermometer uses a laser pointer and whatever the laser is touching will read the temperature of.

This is a very useful tool in finding hot spots in radiators and condensers. If any hot spots exist, this will require opening the system back up and therefore will not only need a replacement condenser but a recharge of refrigerant as well. This service should only be performed by professionals with the correct tools due to the extreme dangers of refrigerant being released into the atmosphere or inadvertently inhaled.

Read Full Q/A … : A/C will not put out cold air.

Air conditioner blows hot air on the left side and cold air on the right side
ANSWER : A common issue across many makes and models with dual AC in the temperature blend door actuator failing and causing drastic temperature differences between the driver and passengers sides. Have the HVAC system inspected by an experienced professional to find the specific cause. A certified professional from YourMechanic can come to your car’s location to diagnose the AC and assist with proper repairs.

Read Full Q/A … : A/C will not put out cold air.

My heater is blowing air through the driver side air vents but is blowing cold air through the passenger side and rear console ven
ANSWER : Hi there:

Climate controlled vehicles have multiple electrical relays that open and close vents to maintain the desired temperature. In some instances, these relays can wear out overtime. However, it’s also common for debris to clog up vents (especially side vents) which may restrict the flow of cool air. The best way to determine why your AC is not working efficiently, it might be best to have a professional mechanic complete a AC inspection; so they can pinpoint the source of your issues and recommend the right repairs.

Read Full Q/A … : A/C will not put out cold air.