When your AC stops cooling properly, the first thought is often “maybe it needs more gas.” But adding refrigerant without proper inspection can do more harm than good. AirChill AC Maintenance and Duct Cleaning explains why correctly refilling refrigerant is essential to avoid costly repairs and keep your AC running efficiently.
Why AC Systems Lose Refrigerant?
Modern VCS AC systems are closed systems, meaning refrigerant should never leak under normal conditions. If your AC is low on gas, there’s usually an underlying issue. Some common reasons include:
- Refrigerant leaks in copper pipes, joints, or fittings.
- Poor sealing or brazing work done during previous repairs.
- Corrosion or damage to coils or connections.
Simply topping up gas without finding the cause is a temporary fix. The leak will continue, and over time, it can lead to compressor damage that costs thousands of dirhams to repair. AirChill AC Maintenance and Duct Cleaning recommends always fixing leaks before adding refrigerant.
Proper Leak Detection Methods
Finding and repairing leaks before refilling refrigerant is critical. Professionals use different methods, including:
- Vacuum Testing – A vacuum pump is used to evacuate the system. If the vacuum doesn’t hold, there’s a leak.
- Electronic Leak Detectors – Tools like heated-diode or ultrasonic detectors can quickly locate small leaks.
- UV Dye Tests – A special dye is added to the system, and leaks are spotted under UV light.
Leak detection ensures the system is sealed properly before you invest in refilling. AirChill AC Maintenance and Duct Cleaning uses advanced tools to ensure no leaks remain.
Why Vacuuming and Evacuation Are Critical
One of the most important steps before refilling is vacuuming the system thoroughly. Here’s why:
- Removes Moisture and Air – Any trapped air or moisture can mix with refrigerant, causing acid formation and internal corrosion.
- Protects the Compressor – Moisture can damage the compressor, leading to costly replacements.
- Improves Cooling Efficiency – A clean system ensures refrigerant flows smoothly, giving better cooling.
Professional technicians use a vacuum pump to achieve a deep vacuum (28–30 inches Hg) and hold it for 30–45 minutes. AirChill AC Maintenance and Duct Cleaning never skips this crucial step because it directly affects your AC’s performance and lifespan.
Filling with Refrigerant – Doing It the Right Way
After confirming there are no leaks and the system is properly vacuumed, refrigerant refilling can begin. Here’s the correct procedure:
- Use the Manufacturer-Recommended Gas – Always use the right type and quantity of refrigerant.
- Monitor with Gauges – Professionals track pressure and temperature to ensure the correct charge.
- Pressure Hold Test – Once filled, the system should hold steady pressure. A drop means there’s still a leak.
Skipping these steps can result in overcharging or undercharging, which reduces cooling efficiency and stresses the compressor.
Post-Fill Testing and System Conditioning
After filling refrigerant, a complete system test is done to ensure everything is functioning perfectly:
- Check Pressure Stability – Ensure there is no pressure drop within a short period.
- Run Cooling Performance Tests – Measure airflow and temperature to confirm maximum cooling.
- Inspect Again for Leaks – Even after refilling, a final leak check guarantees long-term reliability.
This step ensures your AC delivers efficient cooling and maximum performance.
Common Mistakes That Lead to Costly Repairs
Many technicians and DIY enthusiasts make critical mistakes, including:
- Topping Up Without Fixing Leaks – Gas keeps leaking, leading to frequent refills and compressor failure.
- Skipping Vacuuming – Moisture inside the system causes corrosion and acid formation.
- Overcharging or Undercharging Gas – Both can overheat the compressor and reduce efficiency.
These mistakes can cost you thousands of dirhams in repairs. That’s why AirChill AC Maintenance and Duct Cleaning follows strict procedures for every service.
Case Study: How AirChill Saved a Client Thousands
A recent client had repeated gas leaks and a failing compressor. Our team:
- Detected and sealed all leaks.
- Performed a complete vacuum evacuation.
- Refilled refrigerant to manufacturer specifications.
- Conducted pressure and performance tests.
Result? The AC delivered powerful cooling, and the client avoided a compressor replacement that would have cost over 5,000 dirhams.
DIY vs Professional Service
Refilling refrigerant might seem simple, but it requires proper tools, experience, and knowledge of safe handling practices. AirChill AC Maintenance and Duct Cleaning has licensed technicians who:
- Use professional vacuum pumps and leak detectors.
- Follow international standards for refrigerant handling.
- Ensure maximum cooling efficiency and long-term savings.
Cheap, unprofessional refills may cost less initially but often lead to major repairs later.
Conclusion – Pay a Little More, Save a Lot Later
Proper refrigerant refilling might cost slightly more, but it protects your AC system from expensive damage, ensures efficient cooling, and extends the life of your compressor.
For reliable and professional service, contact AirChill AC Maintenance and Duct Cleaning today. Get your AC checked, properly refilled, and enjoy stress-free cooling all summer long!
