How to

How to vacuum AC without Vacuum Pump – DIY Evacuation Steps

The vacuum pump is extremely important in an AC system. It helps in the smooth functioning of the AC and ensures that you evacuate it easily whenever the need arises. However, there may be times when the vacuum pump is not working, and you need to vacuum your AC. What do you do? Do you call an expert or sprint to the store for a new vacuum pump? Neither!

How to vacuum AC without Vacuum Pump

There’s a way to vacuum your AC without using the vacuum pump at all. In this article, we shall talk about it in detail.

We request you to follow the steps here carefully so that you do not go wrong in the process. Any lax may cause problems, eventually leading to damage.

clean AC without using the vacuum pump

  • Turn the compressor on.
  • Go to the high side of your AC and depress the access valve from there.
  • The pressure will start going down on the low side. Keep monitoring it until it reaches the minimum and then shut the access valve.
  • Turn the compressor off.
  • Now, charge the low side to 14 psi.
  • You will need to make sure that the pressure on both sides is the same. This will take around 3 minutes.
  • Turn the compressor on again.
  • Repeat the steps from 2 to 6. Each time, charge the low side only to 14 psi until the sides equalize.
  • Now, when the gas stops coming from the high side, close the valve. This will remove all the air from the AC system.
  • Charge your compressor now with how much ever refrigerant is required. 
  • Turn the compressor on.
  • Check and make adjustments if needed. 
  • You are done!

The process is quite simple, but it requires you to be meticulous and patient. Having said that, if you have never worked with an AC before and are not sure about how things should be done, it is best to leave it to the experts. We do not recommend experimentation because any mistakes can have dire consequences.

We hope this article helps you go through the process easily. If you have any questions, please do not hesitate to ask us through comments. We are always looking forward to helping our readers. 

Irene Lloyd

A Mechanical Engineer from OHIO and This Engineering is one of the oldest and largest disciplines of study, and I am working in this field form ten years. and now I am Writing Blogs on Work that I am Doing.

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