Why Is My Aircon Leaking Gas Frequently?

Aircon gas leaks are one of the more serious problems homeowners may face. Unlike water leaks, refrigerant gas should never decrease under normal operation.

If your technician needs to top up gas frequently, it usually means there is an underlying issue within the system.

Understanding the causes helps prevent repeated servicing costs and protects the lifespan of your air conditioning system.

What Is Aircon Gas?

Aircon gas, also known as refrigerant, is responsible for absorbing heat from indoor air and releasing it outside.

This process allows the air conditioner to produce cool air.

In a properly installed system, refrigerant circulates in a sealed loop, which means it should not run out over time.

If gas levels drop, it usually indicates a leak somewhere in the system.

Common Reasons Aircon Gas Keeps Leaking

1. Small Leaks in Copper Pipes

Over time, copper piping can develop tiny holes due to corrosion or vibration.

These micro leaks allow refrigerant to slowly escape, which may require frequent gas top ups.

2. Poor Installation Work

If the flare joints or pipe connections were not installed properly, small gaps can form.

These gaps may slowly release refrigerant gas during operation.

3. Aging Aircon Systems

Older air conditioners may develop worn seals or weakened joints in the refrigerant line.

As the system ages, these areas become more prone to leakage.

4. Physical Damage to Pipes

Sometimes pipes may be bent, crushed, or damaged during renovations or servicing.

Even small damage can weaken the refrigerant line and lead to gas leakage.

5. Corrosion from Moisture

Moisture exposure around outdoor units or piping can cause corrosion.

This corrosion may eventually create tiny holes in copper pipes.

Signs Your Aircon May Have a Gas Leak

Some common symptoms include:

• Aircon blowing warm or weak air

• Ice forming on the indoor coil

• Hissing sounds from the unit

• Aircon taking longer to cool the room

• Frequent need for gas top ups

If you notice these signs, it is important to inspect the system instead of repeatedly refilling gas.

Why Frequent Gas Top Ups Are Not a Solution

Gas top ups alone do not fix the root problem.

If the leak is not repaired, the refrigerant will continue escaping.

This can cause:

• Poor cooling performance

• Higher electricity usage

• Damage to the compressor

• Shortened lifespan of the aircon

A proper inspection helps locate and repair the leak before refilling refrigerant.

Need Professional Aircon Inspection?

At Sky Blue Aircon Engineering Pte Ltd, our technicians check the entire refrigerant system to identify the source of leaks before recommending any gas top up.

This helps prevent repeated issues and keeps your aircon running efficiently.

📲 Message us on WhatsApp at 9248 7291 or call 6556 4042

Sky Blue Aircon Engineering Pte Ltd keeping Singapore homes cool and reliable.