why is my car ac blowing hot and cold air

In this way hot refrigerant remains to be hot. And over time this can cause the automobile to emit only hot air.

My Car Ac Is Blowing Hot Air And I Refilled It With Refrigerant And It Started Blowing Cold Air But After A Few Mins Warm Air Started Again The Ac Guage Showed

A stuck blend-air door.

. Other possibilities include a faulty compressor broken cooling fans or an issue in your electrical system. Web How Your Cars Air Conditioning System Works 5 Reasons Your Car AC Might Be Blowing Hot Air Electrical System Malfunction Low Refrigerant Level Bad Compressor Malfunctioning Condenser Broken Cooling Fans Recharging Your Cars AC System Car Air Conditioning Repair Cost The Bottom Line Frequently Asked Questions. Web If this fails it may send the wrong signal to the blend door actuator and this may cause it to blow hot air instead of cold.

Thankfully in this guide we will review each of these car AC problems in detail. Refrigerant compression and subsequent expansion is the basic principle of how AC works. Web Low Car AC Charge Causing Evaporator Freeze Up and Low Airflow.

Web 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. Web 2 Worn Out Compressor. If an electrical component in the AC system malfunctions your AC could shut down and blow hot air.

When the system charge is low it forces the evaporator coil to become very cold to the point of freezing the condensation occurring on the fins or the evaporator. Cabin air filters help ensure that your air conditioners evaporator coils and condenser are in tip-top shape. Moisture In The AC System Blocked Drain Pipe Blocked Expansion ValveOrifice Tube Defective Compressor Clutch Refrigerant Overcharged Discharged Battery Blown Fuse A Corroded Relay Faulty AC Control Switch Slow Blower Fan Speed Bad Sensors 1.

Web The most common causes behind an air conditioner blowing hot air on only one side will be a bad actuator electrical issues device settings battery issues or refrigerant issues. Web Why is My Car AC Blowing Hot Air. Your car AC system will then switch off is a compressor.

Web Faulty cooling fans are another reason why your car ac does not blow cold air. The ice builds over time to the point of blocking the airflow. This is because if fans do not work properly the condenser may not receive proper cooling.

1 Blockage in the pipe Broken condenser The other two reasons for blowing hot air in the condenser are blockage in the pipe and broken condenser. Web Step 3. The blockage in the pipe or anywhere in the tube can result in the improper operation of the condenser.

Make sure to get the best car cleaning pressure washer with a pressure controller. You can find if the fans are faulty by visual inspection and see if they are broken. Web Lets start with the most frequent cause of AC blowing hot air.

Web Below are the eleven complete reasons for a car air conditioner blowing cold then warm. Web Watch at proclaimlibertry2000 about valuable tips and tricks on how to get your vehicles AC blowing cold air again. Issues With the Evaporator Coils or Condenser.

Because it is a complicated machine compressor failure can be caused by a number of things such as contaminants or other failed parts in the system. 1 Low Refrigerant Levels Are The Cause Of AC Blowing Warm Air Air conditioner effectively exchanges heat turns hot air into cold air only when it has sufficient levels of refrigerant. Your vehicles air-conditioning system relies on a compressor to move the refrigerant through a series of lines and filters that remove heat from the vehicles cabin.

Clean the car AC Condenser To clean the condenser coil youll need a water pressure washer. Head Unit Or HVAC Controls Not Working. This is why you have hot air instead of cold air.

Most older cars have wires for this but newer cars have an electronic signal between these which can fail. Web If the temperature sensor of your car is not working your vehicle will have a hard time picking up particular information and thus can cause your cars AC to blow hot air on the passenger side. 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.

Web This dirt clogs and obstructs the free flow of cool air. The Air condition control unit is often quite expensive and it is recommended to check the other things first. Now clean the coil from the car ac condenser from both inside and outside.

In such cases you will need to replace your cabin air filter. Other reasons why a car AC system may blow hot air include. Under no circumstances will.

Web 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. A fault temperature sensor can affect the way the temperature settings work. Some of these can be fixed easily whereas others will likely need the services of a mechanic.

To get done with that dont pour water onto the coil directly. Web A cars AC system comprises a maze of wires switches and fuses that work together to deliver power to the AC unit.

Why Does My Car Air Conditioner Blow Cold Then Warm Firestone Complete Auto Care