Why Does My Car Ac Work Sometimes

A dirty cabin air filter could be causing the problem, since air that’s not entering cleanly will cause the ac to not work at peak efficiency. The coils in the ac unit work to condense the heat and moisture in the air, taking out the humidity before pushing the cooled air into your car.

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

Sometimes you may have a compressor that no longer works so the system may not be building up pressure so the pressure switch does not cycle the fans.

Why does my car ac work sometimes. A refrigerant leak can occur at any point in the air conditioning process and so it’s sometimes difficult to pinpoint the exact location of the leak. One of the first symptoms of a bad or failing ac blower motor relay is a blown ac blower motor relay circuit fuse. Ironically, the very thing that makes an air conditioning system convenient, easy to use and reliable is the thing that most often causes intermittent problems — electronics.

Low refrigerant can cause the a/c system to cycle on and off, prevents the a/c compressor from doing its job, which leaves you with unreliable air conditioning. Over the last ten years more and more features have been added that make automotive air conditioning and heating systems more complex. A car ac that’s intermittently cold in chino, ca can also be due to a blocked evaporator drain or an overcharged system—a freezing problem can also usually be identified by customers if there are puddles of water under the car.

Your car is leaking refrigerant. Typically an iced over evaporator is the culprit. I had a car with an air conditioner that showed symptoms similar to yours, and a mechanic diagnosed it as low charge.

As these coils are colder than the air around them, hot air flowing into the unit can create moisture pockets that surround the condensing unit in your ac system; Tammy start of by checking the refrigerant level. Read full answer sep 21, 2014 •.

So on my way to work it will kick on just after it reaches that mark. Why does my ac in my car work sometimes? For a while the system keeps working.

Kritiper ( 21244) “great answer” ( 1 ) flag as… ¶. If this is an a/c in a car then one possibility is evaporator icing, which i have experienced in two different cars. The repair typically involves replacing the leaky part and adding the proper amount of.

The probe from the thermostatic expansion valve may be loose in the evaporator coils causing the intermittent operation. When the ac compressor pulley and bearing fails, you can hear a squealing noise coming from the engine. Excessive heat is the biggest enemy of all car ac components.

An evaporator covered in ice can’t cool the air, so you would have to wait until the ice melts, which is why the cold air eventually returns. I searched for an answer online and found many answers such as that older a/cs lose freon or the internal parts become dirty. Here are a couple of main reasons why the ac compressor pulley and bearing fails:

If they are the same look toward the motor, if they are different look toward the switch and wiring, again using voltage meter readings, mine was a connector pin that was now clicked in properly. Intermittent cooling is often caused by the components of your vehicle’s ac system freezing up. Why ac compressor pulley and bearing fails.

I bought a window a/c. Also cars use flaps to regulate air mix from heater core (it is in your dash somewhere) to achieve correct temperature. If i get back in the car when it's still warm, it will work if above that notch, and if it's below that mark it will kick on once it reaches that mark.

For that you can either take it to a shop or use one of the refills you can purchase at automotive supply places. This typically happens if the engine is too hot, so be sure to check your car’s temperature. I would agree with @jerv.

Over the last week, the air conditioning has been working intermittently. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. While your situation the problem is cold air, it may be how this system gets stuck in your car.

There may be numerous issues causing the icing—from a dirty cabin air filter to a blocked evaporator drain or an overcharged system. The refrigerant/freon level is full. When it works, the compressor clicks on and it blows ice cold air in the cabin, but when it doesn't work it blows out hot air, and the compressor doesn't click on.

Cold air blows intermittently intermittent cooling is often caused by the components of your vehicle’s ac system freezing up. Which create small pools of water that. If it’s hot in a situation of car air conditioner blowing hot air ,.

I just found out a different answer. Why does my air in my car only work sometimes? Of course you also want to check to ensure that your compressor comes on appropriately and that the compressor clutch is working.

Due to a slow leak in your system over a period of years, the pressure of the refrigerant gradually decreases. The most common places where leaks are found are at a/c unit hose connections. If it stops running and the lightbulb is on, you know to replace the fan motor.

As the ac compressor pulley rotates along with the bearing,. Take readings at the motor connector when it is working right and write them down on paper, when it stops working again, take the readings again. Typically an iced over evaporator is the culprit.

Intermittent cooling is often caused by the components of your vehicle's ac system freezing up. It would be very cold for a few hours but would stop cooling after that. Some cars have a shut off feature that will disengage your car air conditioner compressor if your engine is under duress.

The ac light on the dash works as it should (i'm able to turn it on/off by pushing it) thoughts?

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