How Often Should You Top Up Your Aircon Gas?

 If you live in Singapore, chances are your aircon is one of the most frequently used appliances in your home. With our hot and humid climate, it’s no surprise that people rely heavily on air conditioning to stay comfortable all year round. But what happens when your aircon starts blowing warm air or doesn’t feel as cold as it used to? Many times, the issue comes down to low refrigerant levels—and that’s where an aircon gas top up comes into play.

Unlike petrol or batteries, aircon gas doesn’t get used up through normal operation. It circulates in a closed loop within the system. However, over time, small leaks or wear and tear can cause the refrigerant to slowly escape. When that happens, your aircon has to work much harder to produce the same cooling effect, leading to higher energy bills and unnecessary strain on the system.

So, how often should you actually top up your aircon gas? For most well-maintained units, a top-up is only needed once every one to three years. Some systems may not even require it for longer—especially if they were properly installed and serviced regularly. At Wei Wei Aircon, we always advise our customers not to top up gas unless it’s really needed. During our servicing visits, we use professional tools to check the gas pressure and only recommend a top-up if the level has dropped below the safe range.

There are a few signs that might indicate your aircon is due for a gas top-up. If your room isn’t cooling properly, or if you feel weak airflow that doesn’t seem cold enough, it could be a sign of low refrigerant. You might also notice ice forming on the aircon pipes or hear unusual hissing sounds coming from the unit. These are clear signals that the system isn’t functioning optimally, and continuing to run it this way could eventually damage the compressor.

It’s important to point out that aircon gas top-up is not something you should attempt on your own. Different systems use different types of gas—like R22, R410A, or R32—and they each require specific pressures and handling procedures. Improper top-ups can cause even more problems, including damage to your unit or potential safety hazards. That’s why it’s always best to rely on trained professionals like the team at Wei Wei Aircon, who have years of experience providing aircon gas topup Singapore services.

When you book a gas top-up with Wei Wei Aircon, we’ll first inspect your unit to check for any leaks or damage. If everything checks out, we’ll proceed to top up the refrigerant with the correct type and quantity. Once that’s done, we’ll test the system to make sure it’s cooling properly again. Our goal is to restore your aircon to peak performance so you can enjoy a cool, comfortable home without overpaying on electricity.