As temperatures soar, it’s time to get your air conditioner serviced to keep your home cool and comfortable. But there’s a common trick that many people fall for during AC servicing—the so-called “gas leak” scam. Here’s how it works and how you can avoid it.
What Is the AC Gas Refill Scam?
When you call a technician for routine AC servicing, everything seems normal at first. The cleaning begins, but midway, the technician might tell you, “Sir, your AC has a gas leak. It needs a refill.” He then quotes a price for the refill; you negotiate and eventually agree. The technician pretends to refill the gas and charges you for it, even if your AC didn’t need it in the first place.
Sometimes, ACs genuinely have gas leaks and need a refill. But how can you tell if your AC really needs it, or if you’re being tricked?
How to Spot a Real Gas Leak
Before you agree to a gas refill, look out for these signs that may indicate a genuine leak:
- Weak airflow or warm air coming from the AC
- Hissing or bubbling sounds from the unit
- Ice buildup on the coils or refrigerant lines
- Unusually high electricity bills
If you notice these symptoms, your AC might indeed have a gas leak. But if your AC is cooling well and none of these signs are present, be cautious when a technician insists on a gas refill.
Know the Right Gas Pressure for Your AC
The best way to protect yourself is to know the correct gas pressure your AC needs. Here’s a quick guide for a standard 1.5-ton AC:
| Refrigerant Type | Running Pressure (PSI) | Closed Pressure (PSI) |
| R32 | 130–140 | 240–280 |
| R410A | 130–140 | 240–280 |
| R22 | 60–65 | Around 150 |
Simple Steps to Avoid the Scam
- Before servicing starts, turn on your AC and ask the technician to measure the gas pressure while it’s running.
- Compare the reading with the table above. If the pressure is within the normal range, you do not need a gas refill.
- Repeat the test with the AC turned off to check the closed pressure.
- If both readings are normal, politely decline the refill offer.
By following these steps, you show the technician that you’re informed, making it less likely for anyone to take advantage of you.
