Don’t get fooled! AC gas refill costs, common scams and maintenance tips explained

Air conditioners keep homes cool in hot weather, but they work well only when the refrigerant level is correct. Many people think gas refill is part of regular servicing, but that’s not true and can lead to extra costs and repeated problems. In this guide I have explained what AC gas refilling means, when it is really needed, and how to check for leaks or poor cooling. I’ve also described common scams in the market and simple steps you can take to stay safe and avoid being overcharged or misled by the service providers.

When does your AC gas leak?

The refrigerant in the air conditioner does not actually consume gas like your car consumes fuel. Rather, it flows in an infinite closed loop. If you’ve felt a dip in the cooling effect in your AC, then it certainly means there is a leak. Other than that, hissing sounds near the outdoor unit or ice forming on the copper pipes are also signs of leakage.

There can be multiple factors behind the gas leakage in your AC unit, including damage in coils, loose joints, or corrosion over time. Aside from that, poor installation can also lead to slow leaks.

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Refills vs leaks technician scam: Everything you need to know

If your AC takes an eternity to simply cool the burning room, then it’s a clear sign that your AC refrigerant, the substance used to absorb and release heat in the cooling process, is low and needs immediate expert help. However, if the repair person simply asks you to top up the gas and doesn’t mention a leak, be aware.

This is a scam, as simply refilling the gas in your AC unit is often a temporary fix to the problem, and if a technician adds gas without finding the source of the leak, the new gas will eventually escape too. The repair person usually does this to save time or just to make some extra cash, as once the gas runs out again, you’ll have to call him.

The permanent fix to the problem would be a pressure test, which would locate the hole(s), and once you know the affected areas, you then need to seal the gap. You should only refill the gas once the leaks are addressed.

How to be safe against the AC refill scam?

It’s not hard to spot an AC gas refill scam. You just need to be a little careful. If your AC technician says the gas is empty every year but never talks about any leakage, that’s a warning sign. You can first check if the gas is really low or if the technician is trying to cheat you. You can check out my article on how to check if your AC has enough refrigerant gas at home.

If you confirm that the gas is actually low, ask the technician to check for leaks. The problem could be a broken coil or a small hole in the pipeline. Usually, they use soapy water to find leaks, just like puncture repair shops do for tyres. They spray soapy water and watch for bubbles. If bubbles appear, there is a leak. If not, everything is fine.

Also, it’s better to take help from authorised service centres or trusted companies that give a warranty on the gas refill.

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Which gas should you fill in your AC?

What kind of gas to put inside your AC depends on the particular model of the AC itself. For old ACs, it’s usually R22, but for new models, it can either be R410A or R32. The general belief is that you can add any gas to any AC unit, which is incorrect and can ruin your AC unit. The gases themselves have their own specifications.

Safety risks and the myth of DIY refilling

Refilling AC gas is not something you should try to do yourself. It needs special tools and proper training. The gas inside an AC is a chemical that can be harmful. If it touches your skin, it may cause burns. If you breathe it in, it can lead to breathing problems.

How much does AC gas refill cost in India?

The cost of refilling AC gas depends on the type of gas and how much is needed. If you’re using an old AC, then the refill may usually cost between Rs 1,500 and Rs 2,500. However, for the newer models, it may be priced around 2,500 to Rs 4,000 or even more. Other than that, you may also have to pay extra charges if there is a leak that needs to be fixed.