SKY BLUE AIRCON ENGINEERING PTE. LTD.
Office Hours: Mon to Fri: 8.00am - 5.00pm | Sat: 8.00am - 3.00pm
6556 4042
When to top up gas?
When to Top Up Aircon Gas?
Your aircon needs refrigerant gas to cool properly. In Singapore, gas top-up is one of the most common servicing needs, especially for older units.
Signs You Need a Gas Top-Up
You should top up the gas when you notice any of these:
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Air is not cold
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Cooling is very slow
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Warm air is blowing out
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Ice is forming on the indoor unit
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Hissing or bubbling noise from the system
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Compressor keeps turning on and off
These signs often mean your refrigerant level is low, or there’s a gas leak.
How Often Do You Need It?
There is no fixed schedule for gas top-up. A properly sealed system doesn't need topping up. But if your unit has a small leak, you may need to refill every 6 to 12 months.
That’s why we check gas pressure during every servicing. It helps catch problems early.
Types of Aircon Gas We Use
At Sky Blue Aircon Engineering PTE. LTD., we top up:
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R22 – For older systems (now mostly phased out)
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R410A – Common in units from 2010 to 2023
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R32 – Used in most new aircon systems today
We carry all three and use the correct one for your system.
What Happens During a Gas Top-Up?
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We check the current gas level
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We inspect for leaks
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We top up the gas to the right pressure
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We test the system to make sure it cools properly
We also advise you if the leak is serious and whether repair is needed.
Still not sure what's wrong with your aircon?
Message us on WhatsApp or use the contact form. We'll help you figure it out. No pressure, no hard sell.