Car Air Conditioner Intermittently Blows Cold Air

Last Updated on April 17, 2023 by Ryan

Car air conditioners intermittently blowing cold air can be caused by a variety of issues. The most common culprits are low refrigerant levels, an electrical issue with the compressor, or a faulty cooling fan. To diagnose and fix the issue, you will need to check for leaks in the system and perform pressure tests to determine if there is enough refrigerant in the system.

If not, then it must be refilled with new refrigerant according to manufacturer specifications. Another potential problem could be with the compressor itself; it may need to be replaced due to age or damage from wear and tear over time. Additionally, you should also inspect any wiring that connects components of your car’s AC system as this could cause intermittent problems as well.

If you’re noticing that your car air conditioner is intermittently blowing cold air, it’s important to have the issue looked at right away. It could be a minor problem with the cooling system or something more serious like a refrigerant leak. Having an experienced auto technician check out the AC system will ensure that any necessary repairs are made quickly and safely so you can enjoy cool, comfortable drives again.

AC Blows Hot and Cold Intermittently

Why is My Car Ac Sometimes Cold Sometimes Not?

The most common reason why your car AC may be cold sometimes and not at other times is due to a refrigerant leak. This could be caused by worn out seals or hoses, corrosion, improper installation, or even damage from an accident. Additionally, the air conditioning system may not have been properly charged with refrigerant during servicing which can cause it to stop cooling.

If you suspect that there is a refrigerant leak in your vehicle’s air conditioning system, it is important to get it inspected as soon as possible so that the issue can be resolved before any further damage occurs.

Why Does My Car Ac Sometimes Work And Sometimes Not?

It is possible that your car’s AC may stop working intermittently because of a few different reasons. Most commonly, it could be due to a low refrigerant level in the system, which can cause the compressor clutch to become intermittent or not engage at all. It also could be caused by an electrical issue such as a faulty relay switch or wiring problem.

Another possibility is an obstruction somewhere in the system, like leaves blocking air flow to and from the condenser coils. In addition, if you have been driving for extended periods without turning on the AC, this could lead to moisture buildup and corrosion inside the unit itself causing it to malfunction. Lastly, it might just need recharging with additional refrigerant gas.

Regardless of what is causing your car’s AC not work sometimes but other times remain functional; it’s important that you get professional help from a qualified mechanic as soon as possible so they can properly diagnose and repair any issues before further damage occurs.

Why Does the Ac in My Car Keep Going in And Out?

If your car’s air conditioning (AC) is intermittently turning on and off, it could be due to a few different issues. The most likely cause is an electrical problem with the AC compressor or blower motor. A faulty relay switch, wiring issue, bad capacitor or worn-out motor can all interfere with the system’s ability to turn on and stay running.

In some cases, debris in the cabin filter may also cause problems by blocking airflow through the ventilation system. Additionally, low refrigerant levels may prevent your AC from working properly. If none of these solutions solve your issue then you will want to consult a professional mechanic for further diagnosis and repair.

Car Air Conditioner Intermittently Blows Cold Air


Car Ac Blows Cold Sometimes

If your car air conditioning starts blowing cold air intermittently, it may be because the cabin temperature has not been set correctly or there is a problem with the thermostat. It could also be caused by a low refrigerant level in the AC system, or it may indicate that some of the components need to be serviced or replaced. In any case, you should have your car looked at by an experienced technician as soon as possible to diagnose and fix the issue so that you can continue enjoying cool air while driving.

Ac Blows Cold Air Then Stops

If your car’s AC is blowing cold air and then suddenly stops, the issue may be due to a faulty compressor. The compressor is responsible for compressing the refrigerant in order to produce cold air, but it requires an adequate amount of pressure in order to function properly. If the pressure is too low or if there’s a blockage somewhere in the system, this can cause your AC to stop working abruptly.

In these cases, it’s best to have a professional mechanic inspect and diagnose your vehicle as soon as possible so that any necessary repairs can be made quickly and efficiently.

Air Conditioner Blows Cold Air Then Warm Air

If your air conditioner is blowing cold air at first and then warm air, it could be a sign that the unit is having trouble cycling on and off. This may occur when the AC’s thermostat or temperature control sensors are not functioning properly, causing the system to run continuously without cooling adequately. It can also cause additional strain on other components of the system like the compressor and evaporator coils.

If you notice this issue with your AC, contact a professional technician right away for service so they can diagnose any underlying issues before further damage occurs.


Overall, the cause of a car air conditioner intermittently blowing cold air can be difficult to diagnose and fix. However, with some troubleshooting and the help of an experienced technician, it is possible to determine what is causing the issue. Once the source has been identified and resolved, vehicle owners can enjoy cool air from their car’s AC system again.


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