How Do I Know It’s Time to Replace Refrigerant in My AC Unit?

How Do I Know It’s Time to Replace Refrigerant in My AC Unit?

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How can I know whether my air conditioner needs refrigerant?” is a common concern we hear from Dubai residents, especially in summers.

To begin with, in an ideal environment, your air conditioner should never require additional refrigerant. Refrigerant does not deplete like gasoline in a car.

So, if there’s a leak someplace, you’ll merely need additional refrigerant. And you’ll need a professional to measure the amount of refrigerant in your air conditioner to be sure. (This is one of the reasons it’s a good idea to schedule a maintenance visit once a year.)

However, there are some indicators that can help you figure it out. Here are some indicators that your air conditioner requires more refrigerant.

Frosting On the Condenser Coils

When your system is low on refrigerant such as R404A refrigerant gas, heat is transferred to the condenser coils’ more accessible water. All of the heat is lost from the water, causing it to freeze and build up on your condenser coils, causing further air conditioning issues.

Warm Or Hot Air Is Blown by The Air Conditioner

Your air conditioner should be delivering chilly air if your thermostat is set to “cool.” It’s a sign you’re short on refrigerant if you only get cold air at night when the outside temperature is lower, or if you don’t get cold air at all.

Electric Bill Is More Expensive Than Expected

A sudden increase in your utility bill indicates that your air conditioner is working more than necessary to maintain the same temperature in your home. You will save money in the long term if you perform routine maintenance on your system.

Remember To Patch the Leak as Well

A good refrigerant supplier will tell you if you have a leak and offer to fix it. Some businesses, on the other hand, do not do this since they would rather charge you to keep coming back and filling up your system.

Furthermore, implementing it correctly takes time. Fixing a refrigerant leak entails the following steps:

  • Draining the system of all refrigerant (called evacuating the system)
  • Locating and repairing the leak
  • Put the fix to the test
  • Adding the proper amount of refrigerant to your air conditioner


Allowing a refrigerant professional to simply “top you off” with refrigerant is not a good idea. Keep in mind that if your air conditioner is running low on refrigerant, it is leaking someplace. You’ll be low again quickly if you merely refill it.


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