Every time the air conditioner cools poorly, many people often receive a familiar explanation from the repairman: "The air conditioner runs out of gas, needs to be pumped more". However, this is not always the reason why the air conditioner operates ineffectively.
According to Mr. Nguyen Minh Tuan - a air conditioner repairman (Bac Ninh), refrigerant is a refrigerant that circulates in the air conditioning system to absorb heat from inside the room and bring it out. In normal operating conditions, this amount of gas does not naturally disappear over time.
This means that an air conditioner cannot simply "run out of gas" after a few months or years of use. If the amount of gas is significantly reduced, the cause usually comes from leaks in pipes, joints or components inside the system.
Common signs when the air conditioner is missing or out of gas are the machine running continuously but cooling is weak, the time to reach the desired temperature is longer than normal, the cooling system may freeze or the hot unit operates overloaded.
However, these symptoms can also appear when the air conditioner is dusty or not cleaned periodically.
In fact, the most common reason why air conditioners reduce their cooling capacity is dust accumulating on the filter grille, air conditioner and heater. After a long period of use, dust can hinder heat exchange, weakening the airflow and making users feel that the machine is no longer as cold as before.
In addition, reasons such as not being fully occupied, air conditioning capacity not suitable for the usable area, thermal fans having problems or thermal sensors operating inaccurately can also reduce cooling efficiency.
Therefore, users should not rush to believe in the conclusion "out of gas" if it has not been thoroughly checked. Before deciding to pump more gas, it is necessary to determine if the system is leaking or not.
If the air conditioner really lacks gas, just pumping additionally without handling the leakage location will cause the situation to recur after a short time. At that time, users will both spend on repair costs and not solve the root cause.
To accurately assess the amount of gas remaining in the machine, technicians need to use a specialized pressure gauge combined with checking the operating temperature of the system. This is an important basis to determine whether the air conditioner is running out of gas or not.
Users should clean the air conditioner periodically every 3 to 6 months depending on the frequency of use. Regular maintenance not only helps maintain cooling capacity but also contributes to early detection of leakage or damage signs of the system.
In many cases, an uncooled air conditioner may not run out of gas. The cause may simply be a layer of dust accumulated after many months of continuous operation.
