Why is my car ac blowing warm air - Car air vents / Image source. Most common reasons the AC is blowing warm or hot air. While there are a variety of reasons your car's air conditioning might not be operating at top performance, the most common are a refrigerant leak, an electrical climate control issue, a problem with the air conditioning compressor, a problem with …

 
5 Reasons Why Your Car AC Is Blowing Hot Air. Leaking refrigerant. A faulty condenser. Electrical malfunctions. Faulty/broken cooling fans. A faulty compressor. These are the primary reasons why your car feels like a sauna rather than a winter day. 1. Leaking Refrigerant.. Roach exterminator cost

The most common causes for AC blowing hot air in Ford Fusion are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are clogged expansion valve or orifice tube ...Jul 13, 2023 ... If your air conditioning is not blowing cold air or not blowing as cold as it once did, there can be a few different things that can cause this.The coolant ensures that the AC cools the hot air quickly. However, suppose you leak, and the chemical goes below the standard, your AC might not function effectively. When charging, ensure that the charging machine does not interfere with the coolant as this prevents any coolant leakage hence AC …Jun 10, 2022 · To tell if the motor is weak, listen for airflow. You won’t hear a lot of airflow from the front of the vehicle with a weak cooling fan motor. Leave the car running for around 10 minutes and make sure other parts are on and working fine, like the AC system. If the fans are working, you’ll hear loud and excessive airflow from the front of ... 1. Car heater systems that blow air. If you find that your car heater system is blowing air but that your car is not heating up: There could be a blockage or other problem stopping heated antifreeze from moving through the heater core component. A valve or switch could be faulty, or the heater core could be a clogged.Scotty Kilmer, mechanic for the last 45 years, shows how to fix a car that is blowing really hot air, even though the AC system is turned on full cold. Often...5 Reasons Why Your Car AC Is Blowing Hot Air. Leaking refrigerant. A faulty condenser. Electrical malfunctions. Faulty/broken cooling fans. A faulty compressor. These are the primary reasons why your car feels like a sauna rather than a winter day. 1. Leaking Refrigerant.The most common causes for AC blowing hot air in Honda Civic are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are clogged expansion valve or orifice tube ...An overheating engine can transfer excessive heat to the AC system, causing hot air to blow from the vents even when the AC is off. There are several reasons why an engine may overheat, including: Low coolant level: Insufficient coolant can lead to inadequate heat transfer and result in engine overheating.1. Moisture In The AC System. Freeze Ice Cubes. You might get surprised to know that the most common reason the car air conditioner runs cold than warm is MOISTURE. Usually, air conditioning starts cool and then goes warm, in most cases due to moisture freezing up in the evaporator.The most common cause of a heater blowing cold air is a bad thermostat. The thermostat opens and closes to regulate coolant flow. A thermostat typically opens when the coolant temp...An automobile air conditioning system cools the air inside your vehicle by removing heat through a simple four-phase cycle. Although an automotive AC system has few moving parts, diagnosing why your car is blowing warm air can be tricky. ( Learn how to recharge your car’s air conditioner.) There are many components and other systems …Why is My Car Ac Blowing Warm Air . If your car’s AC system is blowing warm air instead of cool, the problem could be anything from a refrigerant leak to a malfunctioning thermostat. In some cases, something as simple as a dirty cabin air filter can prevent cold air from coming through the vents. Before you …Check if the AC switch is turned on and verify that the air is flowing properly. Sometimes, the air ducts may be blocked, so make sure they’re clean and clear. Check Your Thermostat Settings. Another possible cause for hot air blowing out of your car’s AC is incorrect thermostat settings.If you experience the symptom of the AC blowing hot or cold air on one side but not the other and it’s accompanied by a clicking or ticking sound from …The most common causes for AC blowing hot air in Subaru Forester are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are clogged expansion valve or …Dirty Air Filter. One common cause of an AC unit blowing hot air is a clogged or dirty air filter. Dirty air filters obstruct the airflow throughout your ductwork, meaning the cooled air can’t get into your living space. Replacing the air filter improves airflow, the AC unit’s efficiency, and your comfort. You should change your air …This cools down the air before it gets blown out of the ventilation system into your car to keep you comfortable. Most systems are designed to blow very cold air, between 32 and 40 degrees! These cooling coils, called the evaporator, is where the actual cooling of the air happens. These coils are cooled by cold refrigerant flowing through them.An overheated engine is also a big factor in vehicle A/C system isn’t blowing cold air. The Car ac throws cool air if the engine is not too warm. An overheated engine produces too much heat, which affects the cooling capacity of the condenser cooling fan. As a result, the vehicle AC will not blow cold air properly. Related Post: Car Starting ...Most people use the term AC condenser to refer to the part of the air conditioning system that sits outside the home, even though this part of the system has more components that j...Aug 30, 2022 · Your car’s A/C could be blowing hot air due to a faulty A/C compressor, an issue in the car’s electrical system, or a lack of refrigerant. However, it can also be due to other factors, so here’s a complete list of possible causes: Electrical faults. Condenser issues. Not enough refrigerant or a leak. Many car owners have faced this perplexing issue, wondering why their AC blows hot air instead of cooling down their vehicle. In this article, we will explore some common reasons behind car AC blowing hot air and provide possible solutions to help you understand why your car’s AC may malfunction and how to fix it.Step 3: Clean the car AC Condenser. To clean the condenser coil, you’ll need a water pressure washer. Make sure to get the best car cleaning pressure washer with a pressure controller. Now, clean the coil from the car ac condenser from both inside and outside. To get done with that, don’t pour water onto the coil directly.There are several reasons why the fans in your AC unit do not work properly. It could be because of a faulty motor, worn belts, or lack of lubrication. Dirt and debris can also cause problems in the fans. If the fan, either on the indoor or outdoor unit, fails to work as it should, this will facilitate poor airflow.Low refrigerant levels. Damaged cooling fans. A blocked or broken condenser. An internal obstruction. An electrical fault. Cabin filter and compressor faults. Often, when an air conditioning unit is blowing out hot air the underlying problem as to why your car AC is not working can be identified during a simple visual check …Jun 9, 2010 ... could be low refrigerant level. could also be the air inlet sensor in the passenger foot well, left wall. Unplug and replug sometimes disturbs ...The most common causes for AC blowing hot air in Nissan Rogue are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are …A neglected filter can cause a furnace to blow cold air because it overheats and tries to cool itself by blowing cool air through the ducts and into the home. How to fix: Install a new filter, restart the system, and check the air from the vents. It will run cold at first because there is still cold air in the ducts, but the air should warm ...Like having a blocked condenser, having broken cooling fans can cause a lack of cooling at your condenser and could cause your car AC blowing hot air. The fans could actually be broken, like a burnt out motor, bad mount a chipped fan blade, or they could simply have an electrical problem like a blown fuse or burnt out relay.May 15, 2019 · 1) The Problem: Blocked AC Condenser. Your AC’s condenser is the system through which hot, pressurized refrigerant travels – over the course of this process, it cools down so that it can eventually lower your cabin’s temperature. If the condenser’s many coils are blocked, your AC will only blow out hot air because the cold refrigerant ... The most common causes for AC blowing hot air in Chevy Camaro are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are …Jan 10, 2024 · 1. Refrigerant Leaks. Refrigerant leaks are the most common reason that a car will fair to blow cold air. Unlike our home air conditioning units, the systems in our cars undergo much more stress from external factors. If you experience the symptom of the AC blowing hot or cold air on one side but not the other and it’s accompanied by a clicking or ticking sound from …5 Reasons Why Your Car AC Is Blowing Hot Air. Leaking refrigerant. A faulty condenser. Electrical malfunctions. Faulty/broken cooling fans. A faulty compressor. These are the primary reasons why your car feels like a sauna rather than …Has your 1.5-ton air conditioner been underperforming lately? Are you experiencing reduced cooling efficiency or warm air blowing out of your AC vents? These are common signs that ...If your car AC blows cold then warm it can be a sign of electrical system faults, condenser issues, broken cooler fans, or a lack of refrigerant. Luckily there are some fixes for these common issues such as evacuating the system, recharging the system, and clearing the condenser. If you’d like to get help and chat with a live mechanic now ...May 19, 2022 ... If you find there are no problems with the parts above in your car and the AC is still blowing hot air, there's most likely a leak in the system ...Jun 16, 2023 ... Have you noticed that your car air conditioner blows cold then warm? Here, you will know the 11 reasons why a car AC blows cold air then ...One goes to the radiator; the other goes to the dashboard. 3. Measure the temperature of the air coming out of the vents. The temperature of the air coming out of your vents tells you a lot about where the problem is. Grab a meat thermometer and stick it in one of the vents. Wait a few minutes to get your reading. [4] The most common cause of an AC system blowing warm air is a lack of refrigerant, though you may also have a problem with your condenser. Other possibilities include a faulty compressor, broken cooling fans, or an issue in your electrical system. The most common cause of an AC system blowing warm air is a lack of refrigerant, though you may also have a problem with your condenser. Other possibilities include a faulty compressor, broken cooling fans, or an issue in your electrical system. The most common causes for AC blowing hot air in Subaru Forester are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are clogged expansion valve or …When your car’s AC is blowing hot air, it likely means both you and your car need a bit of a refresher. One of the most common reasons your car AC is blowing hot air is because of a refrigerant issue—specifically, a loss of refrigerant. This loss of refrigerant can occur either due to a leak or because your car’s …5 Reasons Why Your Car AC Is Blowing Hot Air. Leaking refrigerant. A faulty condenser. Electrical malfunctions. Faulty/broken cooling fans. A faulty compressor. These are the primary reasons why your car feels like a sauna rather than …Feb 16, 2021 · How to Fix a Car AC That Blows Hot Air. You will first open the hood and check the AC compressor pressure with a set of AC gauges. You can get AC gauges at places like Amazon or Harbor Freight Tool for about $50 or so. Next, you will take the low-pressure fitting (the blue-tipped part). Then look around under the hood for your vehicle’s air ... Step 1: Check for refrigerant leaks and low refrigerant levels. Refrigerant leaks are a common culprit behind a hissing and non-cold car air conditioner. To detect leaks, inspect the AC system components, …Dec 19, 2022 · 8. Refrigerant Leak. A refrigerant leak is one of the more serious issues that could cause your AC to blow warm air. Do not try fixing a refrigerant leak on your own. Your AC system uses refrigerant to cool the air and then pumps the cooled air through your home. Jul 1, 2020 · Double check your thermostat settings and make sure it’s set to “cool” and “auto”. 4. Issues with the Condenser or Compressor. A blocked or broken condenser can lead to your car’s A/C system blowing warm air. Another reason could be due to a faulty compressor. Your compressor may fail if it hasn’t been used for a while. As temperatures rise, the last thing you want is for your air conditioning unit to break down. When it does, you’ll likely search for “AC service near me” to find a local repair co...Other Possible Reasons for the AC in Your Car Blowing Hot Air. There are different reasons why a car AC blows hot air. Oftentimes, it is due to a leaking refrigerant. Other times, it is due to electrical issues, a faulty condenser, broken cooling fans, and a bad compressor. AC blowing hot air in car may also due to the following issues:So, Your AC Blowing Warm Air Could Be Due To A Refrigerant Leak. We explained how the refrigerant, when put under pressure, gets hotter. The same is true of the inverse. With low refrigerant levels, the chemical liquid in the coil expands, cooling it until it freezes. Because your AC is a closed-loop system, if your refrigerant is low, it is ...The cooling fans work with the compressor to cool the air in your car – but they are fragile. Check to make sure they are not cracked, chipped or damaged due to debris, and check that they are running at the correct speed. Make sure nothing is jammed between the blades, like leaves or bugs, and that the space is …Many car owners have faced this perplexing issue, wondering why their AC blows hot air instead of cooling down their vehicle. In this article, we will explore some common reasons behind car AC blowing hot air and provide possible solutions to help you understand why your car’s AC may malfunction and how to fix it.Apr 18, 2023 ... Have an A/C specialist shop check for leaks with dye and recharge with refrigerant if not solution above. HVAC settings can be adjusted to these ...The most common causes for AC blowing hot air in Mercury Grand Marquis are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are clogged expansion valve or … Your car's A/C system is made up of a jungle of wires, switches, relays, and fuses. Under normal operating conditions, these pieces and parts work together to deliver power to the A/C unit, giving you cool air – on demand. If just one of these parts fails, your A/C could shut down and start blowing warm air. While this helps prevent dangerous ... If your car AC blows cold then warm it can be a sign of electrical system faults, condenser issues, broken cooler fans, or a lack of refrigerant. Luckily there are some fixes for these common issues such as evacuating the system, recharging the system, and clearing the condenser. If you’d like to get help and chat with a live mechanic now ...Carrier air conditioners are excellent systems that are both efficient and quiet. Learn how much a Carrier AC unit costs in this comprehensive guide. Expert Advice On Improving You...Like having a blocked condenser, having broken cooling fans can cause a lack of cooling at your condenser and could cause your car AC blowing hot air. The fans could actually be broken, like a burnt out motor, bad mount a chipped fan blade, or they could simply have an electrical problem like a blown fuse or burnt out relay.Goldfish fish only appear to be blowing bubbles as it opens its mouth to draw in water for oxygen absorption. Sometimes as the fish opens its mouth, air escapes and creates a pocke...Check the AC Settings: Before panicking, make sure the AC settings are configured correctly.Ensure it’s set to the coolest temperature and the correct mode. Inspect the AC Fuse: A blown fuse could be the reason for your AC problems.Refer to your car’s manual to locate the AC fuse and check if it needs …Check the operation of the condenser fan and the air conditioning compressor. Connect a refrigerant recovery machine to the AC system, and check pressure readings. Evacuate, recycle and clean/dry the refrigerant. Then fill the refrigerant to the correct level and add dye to assist in checking for leaks. The first thing to do if your AC blows warm air is to make sure the thermostat is correctly set. The outside unit is obstructed: The two main components of your AC are the inside and outside units which work in tandem to cool your home. The outside unit sucks in hot air via its fan while its compressor cools the air and pumps it into your home ... 8 Common Causes Of “Air Conditioner Not Blowing Cold Air” We have broken down each cause into 3 sections to help you out: What part of AC might be causing the “not blowing cold air” problem.; How to check which part of AC caused the indoor unit to not blow cold air.; How to fix the problem (either DIY or if you need to call an HVAC professional).; In …Jul 1, 2018 ... #2 · project671 Well-Known Member ... Could just be the freon is low. During the winter months the rubber seals contract allowing the freon to ...8 Common Causes Of “Air Conditioner Not Blowing Cold Air” We have broken down each cause into 3 sections to help you out: What part of AC might be causing the “not blowing cold air” problem.; How to check which part of AC caused the indoor unit to not blow cold air.; How to fix the problem (either DIY or if you need to call an HVAC professional).; In …Assuming all your controls are set to cold, if your air conditioning is blowing hot air on warm days, it’s obviously a sign of a problem, which could be caused by several issues. 1. Low refrigerant levels. The most common reason an air-conditioning system won’t work is due to low refrigerant levels. Air conditioning in cars works just like ...Unclog the blocked drain hole. If the smoke coming out of ac vent in car is caused by the steam formed in the air conditioner due to a blocked drain hole, unblocking the component will resolve the issue immediately. However, this is a task for a professional HVAC system technician. Nevertheless, if you understand the system, you can check it out.One goes to the radiator; the other goes to the dashboard. 3. Measure the temperature of the air coming out of the vents. The temperature of the air coming out of your vents tells you a lot about where the problem is. Grab a meat thermometer and stick it in one of the vents. Wait a few minutes to get your reading. [4]Feb 12, 2023 · The most common reason why your AC is not blowing cold air is due to an empty AC system, which is caused by a leak. It can also be caused by a faulty AC pressure switch, a bad compressor, or a damaged AC condenser. In more rare cases, it can also be an issue with your heat controller. The main issues that occur with the car’s air conditioning ... Like having a blocked condenser, having broken cooling fans can cause a lack of cooling at your condenser and could cause your car AC blowing hot air. The fans could actually be broken, like a burnt out motor, bad mount a chipped fan blade, or they could simply have an electrical problem like a blown fuse or burnt out relay.According to About.com, if your air conditioner keeps blowing fuses or tripping circuit breakers, it is because the appliance is trying to draw more current than the fuse or breake...Car air vents / Image source. Most common reasons the AC is blowing warm or hot air. While there are a variety of reasons your car's air conditioning might not be operating at top performance, the most common are a refrigerant leak, an electrical climate control issue, a problem with the air conditioning compressor, a problem with …May 22, 2015 · This cools down the air before it gets blown out of the ventilation system into your car to keep you comfortable. Most systems are designed to blow very cold air, between 32 and 40 degrees! These cooling coils, called the evaporator, is where the actual cooling of the air happens. These coils are cooled by cold refrigerant flowing through them. Another common problem with vehicle A/C units is a broken or blocked condenser. Sometimes, dirt and debris can clog the condenser, leaving it unable to properly ...Another common problem with vehicle A/C units is a broken or blocked condenser. Sometimes, dirt and debris can clog the condenser, leaving it unable to properly ...The most common causes for AC blowing hot air in Nissan Altima are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are …Beginner Guide. There are a few reasons your driver-side AC could be blowing hot air. One possibility is that the AC compressor is not working correctly. If the compressor is not working, it will not be able to pump refrigerant through the AC system, and the air will not be cooled. Another possibility is that there is a leak in the AC system.The compressor in an AC unit is a type of pump, and it functions in a manner that’s similar to a human being’s heart, according to Tech Choice Parts. However, instead of moving blo...So, Your AC Blowing Warm Air Could Be Due To A Refrigerant Leak. We explained how the refrigerant, when put under pressure, gets hotter. The same is true of the inverse. With low refrigerant levels, the chemical liquid in the coil expands, cooling it until it freezes. Because your AC is a closed-loop system, if your refrigerant is low, it is ...Car air vents / Image source. Most common reasons the AC is blowing warm or hot air. While there are a variety of reasons your car's air conditioning might not be operating at top performance, the most common are a refrigerant leak, an electrical climate control issue, a problem with the air conditioning compressor, a problem with …Carrier is a brand name manufacturer of air conditioners in the US. Started by Willis Carrier in 1915, the company has a long history of making important contributions to the air c...This outside hot air is moving past the blower motor, to the heater core and beyond into the cabin. This can occur even when the system is turned off. It’s less likely if the mode is set to recirculate rather than intake. You can test what the actual issue is by adjusting the heater system controls. If the air flow is hot regardless of the ...The most common causes for AC blowing hot air in Chevy Tahoe are low or overcharged refrigerant, compressor malfunction, dirty condenser or evaporator coils, faulty blend door actuator, defective evaporator temperature sensor, bad AC pressure sensor, and bad fuse or relay. Less common causes are …Aug 6, 2023 · Regularly check the refrigerant levels: Low refrigerant levels can lead to your car AC blowing hot air. Make sure to check the levels regularly and refill if necessary. Clean the AC system: Over time, dust and debris can accumulate in the AC system, leading to blockages. Regular cleaning can help prevent this. 1. Leaking Refrigerant. The most common reason for a car AC suddenly blowing hot air is leaking refrigerant. The refrigerant is the fluid that circulates through the air …

1. Car heater systems that blow air. If you find that your car heater system is blowing air but that your car is not heating up: There could be a blockage or other problem stopping heated antifreeze from moving through the heater core component. A valve or switch could be faulty, or the heater core could be a clogged.. Bars in colorado springs

why is my car ac blowing warm air

An overheating engine can transfer excessive heat to the AC system, causing hot air to blow from the vents even when the AC is off. There are several reasons why an engine may overheat, including: Low coolant level: Insufficient coolant can lead to inadequate heat transfer and result in engine overheating.According to About.com, if your air conditioner keeps blowing fuses or tripping circuit breakers, it is because the appliance is trying to draw more current than the fuse or breake... To keep your car’s AC in top shape, follow these maintenance tips: Regularly Check the Refrigerant Level: Low refrigerant is a common cause of a car’s AC blowing hot air. Check the level regularly and top it up if necessary. Clean or Replace the Air Filters: Dirty air filters can reduce the airflow from your AC. 1. Moisture In The AC System. Freeze Ice Cubes. You might get surprised to know that the most common reason the car air conditioner runs cold than warm is MOISTURE. Usually, air conditioning starts cool and then goes warm, in most cases due to moisture freezing up in the evaporator.1. Leaking Refrigerant. The most common reason for a car AC suddenly blowing hot air is leaking refrigerant. The refrigerant is the fluid that circulates through the air …In general, car heater issues can be caused by the following: Low antifreeze. If your antifreeze has gotten too low, it means there won’t be enough hot liquid in the heater core, resulting in cold air. You should top up the coolant to the appropriate level and then check to see if the heating is working again. Damaged …Many car owners have faced this perplexing issue, wondering why their AC blows hot air instead of cooling down their vehicle. In this article, we will explore some common reasons behind car AC blowing hot air and provide possible solutions to help you understand why your car’s AC may malfunction and how to fix it.May 6, 2021 ... It needs to be charged with a professional machine. With your AC functioning some of the time, I'd say your refrigerant level is low, and needs ...Jul 28, 2022 ... YOUR CONDENSER IS BLOCKED ... The condenser is responsible for keeping your refrigerant moving and expelling hot air from your car, so when it ... Other Possible Reasons for the AC in Your Car Blowing Hot Air. There are different reasons why a car AC blows hot air. Oftentimes, it is due to a leaking refrigerant. Other times, it is due to electrical issues, a faulty condenser, broken cooling fans, and a bad compressor. AC blowing hot air in car may also due to the following issues: 8 Reasons Your AC Is Blowing Warm Air. Here are some of the most common reasons why your AC is blowing warm air and what to do next. 1. The Thermostat Is On the Wrong Settings. If your AC is blowing warm air, the first thing you should check is your thermostat’s settings because this will be the easiest fix. It’s …Key Takeaways. Your car’s AC system works on a cycle of evaporation and condensation driven by a substance called refrigerant. Common issues with car …Apr 29, 2020 · There are several reasons why the fans in your AC unit do not work properly. It could be because of a faulty motor, worn belts, or lack of lubrication. Dirt and debris can also cause problems in the fans. If the fan, either on the indoor or outdoor unit, fails to work as it should, this will facilitate poor airflow. Generally speaking, a lack of refrigerant is the most common cause of your AC system only blowing warm air. But it is not the only cause; broken fans, electrical issues, condenser, or …When you’re in the market for an air conditioning unit (AC) you should be aware that all HVAC brands are not equal in quality and reliability. This guide highlights four AC brands ...Step 1: Check for refrigerant leaks and low refrigerant levels. Refrigerant leaks are a common culprit behind a hissing and non-cold car air conditioner. To detect leaks, inspect the AC system components, …Feb 2, 2024 · Your AC unit cleans air by forcing warm air to release. Newer car models have multi-speed fans that push through air vents. These are controlled by computer modules. Contents hide. 1.Your air conditioner has excess moisture and contaminants. 2.Your refrigerant is running low. 3.Your blend air door is malfunctioning. If the compressor in your unit is malfunctioning, the refrigerant is unable to turn from a gas to a liquid to cool the air. This is vital in ensuring that cold air blows from your air conditioning vents. 5. Refrigerant Leak. Once again, refrigerant plays a vital role in allowing your air conditioning unit to blow cold air.Oct 10, 2021 ... You probably have an evaporator leaking. If you have rear AC you have 2 evaporators. They can both be leaking, The rear AC is easy to see.This cools down the air before it gets blown out of the ventilation system into your car to keep you comfortable. Most systems are designed to blow very cold air, between 32 and 40 degrees! These cooling coils, called the evaporator, is where the actual cooling of the air happens. These coils are cooled by cold refrigerant flowing through them.1. Refrigerant Leak. A car A/C blowing hot air is often the result of a refrigerant leak. Refrigerant is a liquid that circulates through your car’s A/C system, expanding and contracting as it removes heat and humidity from the cabin. None of the other A/C components will function correctly without proper refrigerant levels..

Popular Topics