Understanding How To Recharge Your A/C

Understanding How To Recharge Your A/C

Recharging your car’s A/C is not a challenging task. This is something that you can do within 15 minutes. Before recharging your A/C, you need to have a charge kit ready. Also, you have to visit your local auto store to let them advice you on the appropriate type of refrigerant to use.

The most common refrigerant used today is the R-134 after the R-12 was phased out in 1995. Modern cars use the R-134 since it has better characteristics that are not harmful to the ozone layer. Any car model manufactured before 1995 probably still uses the R-12 refrigerant. However, if you have an old car model, you can still convert it to use the R-134 refrigerant which is much safer.

How do you recharge your car’s A/C?

Locate The Low Side Port

First, you have to find the low side port of the A/C system. You will locate it between the evaporator and the compressor. It will be the barb inside the larger tube. If you are not sure if this is the right part, you can clarify from your local parts store or your service manual. It is best to work with a trained technician if you are recharging for the first time by yourself.

Attach Can Of Refrigerant

Next, screw the gauge and the dispenser hose onto the can of the refrigerant. Pull back the outer slip ring and attach it to the low side port by pushing it on before releasing the ring. After doing this, start your car’s engine and turn on your A/C on full blast to check the reading in the gauge. The compressor’s front should be spinning and the clutch should be engaged. If your readings are lower than 20 psi, that means that the compressor is not engaged. When this happens, dispense the refrigerant until the clutch does engage. While doing this, shake the refrigerant can as often as possible.

Continue Dispensing Refrigerant

To ensure you reach the proper system pressure, use a pressure chart in the refrigerant instructions manual. If you don’t reach the desired pressure, keep dispensing the refrigerant and keep reading the gauge until you reach the desired level. Be careful that you do not over pressurize the system.

Check For Minor Leaks

To check if there are any minor leaks in the system, you need to have a UV kit. Checking for leaks allows you to make the necessary repairs before the situation gets worse. Using the UV pen, check for leakages in all junction points and valves in the system. Most leakages take place where the refrigerant is fed to the rear A/C from the front A/C under the car.

Unless you are car enthusiast or have a passion for vehicles, you should never recharge the A/C of your car by yourself. It may seem like a simple job, but one wrong move can end up costing you much in repair jobs. Always have a trained technician to do the recharging for you. While they are still at it, have him or her inspects other areas of your system for faults and repairs them before the situation gets out of hand.