Refrigerant gas is essential for the proper functioning of the air conditioning. It is responsible for cooling the air that circulates in the environment. However, contrary to what many people think, the gas does not "run out" with use. If the device is in good condition and has no leaks, there is no need for constant replacement. Even so, there are situations in which the gas needs to be replaced. See below how to identify the right time.
1. Air Has Stopped Cooling
If the air conditioning is on, but it does not cool as before, it may be a sign that there is a low level of refrigerant gas. This is one of the main indications that there may be a leak in the system.
2. Ice in the Indoor Unit
The presence of ice in the tubes or in the evaporator is a strong indication that there is an insufficient amount of gas. The system tries to compensate for the lack of fluid, which causes abnormal freezing.
3. Increased Energy Consumption
When there is a lack of gas, the appliance needs to work longer to try to reach the programmed temperature. This can lead to a considerable increase in the electricity bill.
4. Unusual Noises or Irregular Operation
Unusual noises or abnormal switching on/off may also indicate a fault related to the pressure of the refrigerant gas.
5. Visible Leak or Unusual Smell
Some types of gas have a characteristic smell. In addition, there may be the presence of oil near the connections or pipes, indicating a physical leak in the system.
When Does the Gas Need to Be Refilled?
After a leak has been identified and repaired.
During maintenance in which the piping has been changed.
When there is a loss of pressure detected by measuring instruments.
Important: Simply refilling does not solve the problem if there is a leak. The system must be sealed and tested before reinserting the gas.
Who Should Replace the Gas?
Gas recharging should only be done by a qualified technician, with the right equipment to measure pressure, locate leaks and ensure the correct type of gas is used (R-22, R-410A, R-32, etc.).
Conclusion
If your air conditioner is weak, freezing or acting strangely, it may be time to check the gas. However, remember: gas does not go away on its own. Every recharging must be preceded by a detailed technical assessment. Preventative maintenance avoids unnecessary expenses and increases the lifespan of the appliance.
