Advices to Fix Your Car’s AC in Case of Malfunction

Advices to Fix Your Car’s AC in Case of Malfunction

Because water was used instead of freon, the car’s air conditioner isn’t working properly. All too frequently, people fail to recognize the risks associated with water. If you drive your automobile without an air conditioner during the winter, condensation could form inside the engine and other systems. A half glass’s worth of liquid could be lurking in the hoses. Corrosion can also be formed because of the presence of water.

Air conditioning in the midst of winter? It sounds paradoxical, but there are occasions when it’s really necessary. Compounding difficulties is the fact that electronics frequently fail to function when the temperature drops below freezing.

Air in the car’s air conditioner is a warning sign. Seventy percent of air is nitrogen, which is dangerous since it has different physical properties than freon. The compressor’s workload has just increased significantly as a result of this. Every month, even in the midst of winter, you should turn on the air conditioner. Because it keeps the system operating even when it’s not being used, preventing water and air from building up.

Here in the next piece, we’ll take a close look at the AC problem and discuss some potential solutions.

Is AC Recharged?

Current vehicles use the less effective but safer R-134a freon since the Freon (R-12) used in previous vehicles is damaging to the ozone layer. During the recharge process, about 0.5 kg of refrigerant is needed (for small and medium-class cars).

When to Recharge Freon?

It happens when fluid leaks out of the system. As a result of typical use, some leakage is to be anticipated as a byproduct of the car’s air conditioning system, which consists of a network of tubes. Between 10% and 15% of fluid is lost annually. This means that every three to five years, a fully functional system must be utilized to recharge the freon.

Reasons for Recharging Freon

  • The air conditioner blows cold air, but it’s not as cold as it used to be;
  • No freon leaks;
  • No conditioned oil remains in any of the system’s joints;
  • It has been more than three years since the car was serviced, and much longer since the air conditioner was recharged.

If your car’s air conditioner stops cooling for no apparent reason, the freon may have leaked out (the system won’t come on and you won’t hear the fan sounds). It’s all a part of the service. The freon might have leaked out of the hose if there was a leak. If the root cause is not addressed, the system will collapse in two to three hours.

Is There a Freon?

To check for freon whenever you think it could be present is a simple matter of using your hands. The filling valve on a thick tube needs its protective cap unscrewed (return). The tip of the nipple needs to be pushed. Please exercise extreme caution right now. If there is no reaction or only a very quiet hiss, there is no refrigerant present.

Recharging Process

To recharge freon, follow these easy steps:

1. Removal of the old fluid from the system

Freon must be removed from the car’s air conditioner before it can be recharged (if any). The oil is changed and the required amount of refrigerant is calculated in this process.

2. Leak test

Prior to introducing any additional freon, check for and seal any air leaks;

3. Oil refill

A very little amount of oil (about 15 grams) is incorporated into the system to prevent the compressor’s friction parts from wearing down too quickly.

4. Pumping new fluid

Check that the air conditioner works properly by turning it up to its highest setting.

An air conditioner that has not been fully charged will have oil leak from the compressor. Furthermore, appropriate cooling cannot be achieved with a low charge. When a system is overcharged, excess pressure is created, leading to decreased performance and eventual failure.

Recharging By Yourself

To manually charge your car’s air conditioner, you will need a can of R-134a freon and a special kit. Fitted with tubing and a pressure gauge. Let’s examine the method now:

  • To use, just thread the canister’s valve-wrapped thread into the system.
  • In the thick tube that serves as the return line, there is a filling connection.
  • The system pressure is determined by reading the manometer.
  • If the pressure is sufficient (the gauge reads more than 2.5 bar or is in the green area), there is no need to replace the refrigerant;
  • If the pressure is low, a little valve opening starts the charging process;
  • Take your time and don’t freak out. The pressure level should be increased to three bars. Aim for a temperature of 5 to 9 degrees Celsius in the car when you turn on the air conditioner. If the temperature drops below about 5 degrees Celsius, some of the freon should be removed.

In sum, it’s not the easiest method, and it only performs at about average efficiency. This occurs because there is no vacuum stage and the preceding refrigerant, air, and moisture have all been removed.

The car’s AC can unexpectedly quit operating even after being fully charged. Having an air conditioner’s refrigerant level run low is a common problem when traveling for long periods of time. Due to the accumulation of moisture, rust develops. Solution: Increasing the compressor’s speed while topping off the oil. However, there are restrictions to this method. The peace in your car depends on how well you take care of the air conditioner.

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