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The Most Common Air Conditioning Problems And Solutions

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23Dec NOLA - Air Condition

The Most Common Air Conditioning Problems And Solutions

By NOLA AutomotiveRepairs | 0 Comments

Having a working air conditioning system is a must for any car owner.

It helps you survive those hot summer days when the temperature can make you feel like you’re being baked inside an oven.

If you notice that your car air conditioner works intermittently, it’s time for you to fix it immediately.

Parts Of A Car’s Air-conditioner

Car air conditioner troubleshooting is much easier once you know and understand how its parts work.

You can separate a car’s air-conditioning system into three major components:

1. Compressor: it compresses the refrigerant. It uses the car’s engine belt to run continuously.

The compressor takes cool evaporated refrigerant, and it compresses it into hot vapor. The liquid refrigerant proceeds to the condenser

2. Condenser: The condenser cools the refrigerant using finned tubes after the compressing. The gaseous refrigerant turns into a liquid state, which will then pass through a dryer.

The dryer removes excess water to prevent any crystal formations that could damage the system.

3. Evaporator: The evaporator is the one inside your car that takes in warm air, and blows out cool air.

The refrigerant inside the evaporator becomes gas once more and cools the evaporator coil.

The refrigerant then absorbs the heat from the warm hair to produce cool air. This cool air is redistributed through the car using fans and vents.

Then the refrigerant goes back to the compressor: the cycle repeats.

car air condition button

Why Is My Car’s Air Conditioner Not Blowing Cold Air?

We can figure out why it’s not blowing cold air now that we know how a car air conditioner works.

The most common causes are as follows:

Refrigerant Is Not Charging

A car’s air-conditioning works on a closed-loop. There is no need to refill its refrigerant regularly, unlike other air-conditioning systems.

The only reason to recharge or refill it is when there’s a problem. The best thing to do is to consult professionals to answer auto repair questions.

We can perform a recharge as recommended by your vehicle’s manufacturer.

Refrigerant Leak

A car AC blowing hot air is the main effect of a refrigerant leak.

Several signs indicate that there is a refrigerant leak within your vehicle’s air conditioning. These are:

  •  Audible clicking noise when turning on the air conditioning
  •  Hissing sounds from the HVAC system even when the car is off
  •  Oil residue found in the AC’s hoses and fittings
  • AC cycling on and off on its own

You need to get your AC fixed once you detect these problems. The remaining fluid needs flushing and recharge if a large amount of refrigerant is gone.

Consult a professional repair from a reputable shop like ours.

Fan Motor Problems

A fan motor problem is easy to notice when using your air conditioner.

There might be damage to the motor if you’re increasing your fan speed but not feeling any significant changes.

air condition

Bad AC Compressor Symptoms

Has your car ac stopped working suddenly?

The compressor is one of the car’s most essential parts in its air conditioning system. It keeps the refrigerant flowing, and it will wear down over time and stop working.

Here are some signs that your air compressor needs checking:

1. Higher temperatures: you’ll immediately notice that the air conditioning isn’t as cold as it used to be.

The compressor may be starting to fail and with the refrigerant no longer regulating.

2. Loud noises: it could be coming from the compressor if you notice loud sounds when turning on the air conditioning.

Several parts could break or seize since it runs with the help of the engine belt.

It’ll generate noise like a grinding or squealing sound once this happens.

Other Issues

You may encounter some other problems when using your air conditioning aside from the ones we’ve discussed. These are:

AC Temperature Shifts From Cold To Hot

The cause could be a leak that can cause corrosion and the AC to act up. A fuse may have blown up and needed replacement.

A clog might have occurred, and parts of your car’s AC system require cleaning and replacement.

adjusting car air condition

Foul Odor Coming From The AC

A foul odor when starting the AC means that its air filter is already dirty and old. The best solution is to have your car’s air filter replaced.

Alternatively, there might be mold growth in your evaporator. You can use an anti-mildew spray or solution to treat it, but seek professional help if it persists.

The Cost Of Fixing Car Air Conditioning

Many factors affect how much you pay for car air conditioning repairs. They usually fall around the same values.

Some newer models are costlier to fix, but older models can cost more if replacement parts are scarce.

Car repair costs can range anywhere between $100 and $750 for minor repairs. The cheapest repair job is often a refrigerant recharge.

Expensive repairs often involve repairing the AC compressor, which can easily cost anywhere between $1,000 and $4,000.

It’s better to replace a compressor rather than repairing more often than not.

Compressors have a lot of intricate parts, and fixing them will take more time. Parts are also costly.

Even with the costs, if you find that your car air conditioner works intermittently, go for a repair. We all want to have safe and comfortable rides, mainly since we use our cars a lot.


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