AC Gas Leak Detection & Repair in Dubai
Stop repeatedly paying for temporary gas refills. DHRS pinpoints hidden micro-leaks with 350+ PSI nitrogen tests, brazes copper fractures permanently, and restores your AC's factory cooling pressure.
Why Gas Leaks Ruin Air Conditioners
Refrigerant does not merely cool your living spaces—it carries lubricating polyolester (POE) oil back to the compressor motor. When gas leaks out, the system loses cooling capacity while the compressor starves of oil.
The evaporator coil temperature drops below freezing, forming an insulating wall of frost and ice that chokes all airflow. Continuing to run an AC with a gas leak will cause the compressor to overheat, lock up, and burn its electrical windings.
Permanent Fix Over Quick Top-Ups
We refuse to perform quick "top-ups" that vent into the atmosphere. Our certified technicians isolate the fault, braze the copper fracture, hold a certified pressure decay test, and recharge with virgin refrigerant measured to exact manufacturer specifications.
Evaporator Icing
Starved lines lower saturation pressure, causing thick ice blankets across indoor coils.
Oily Residue Patches
Escaping refrigerant leaves visible dark oil stains around leaking flare nuts and valves.
Line Hissing Sounds
Audible gas escaping from cracked copper piping under ceiling access panels.
Spike in DEWA Bills
The compressor runs 24/7 trying to hit the setpoint, drawing constant excessive amperage.
Our 4-Step Leak Elimination Process
We locate, weld, verify, and evacuate before adding a single gram of refrigerant.
Sectional Nitrogen Isolation & Pressurization
We isolate the indoor FCU, outdoor condenser, and interconnecting line-set. Dry nitrogen is injected up to 350 PSI to detect pressure drops and protect the compressor valves from stress.
Electronic Halogen Sniffing & Pinpoint Inspection
Using heated-diode sensor probes capable of detecting 3g/year leak rates, we sweep all brazed joints, flare connections, and Schrader cores, confirming targets with bubble micro-emulsions.
Silver Brazing & Re-Flaring Under Nitrogen Purge
Defective flare joints are cut and re-flared with eccentric cone tools. Pinhole leaks along copper coils are silver-brazed at 600°C while flowing low-pressure nitrogen to prevent internal soot oxidation.
Deep Vacuum Decay Test & Factory Charging
We evacuate the system with a dual-stage rotary vane vacuum pump down below 500 microns. After verifying zero decay, we charge virgin R410a, R32, or R22 measured on calibrated digital scales.
Frequently Asked Questions
Technical insights on AC refrigerant leak detection and repairs in Dubai.
Why does topping up refrigerant without fixing the leak waste money?
An air conditioning system is a hermetically sealed circuit that does not burn or consume refrigerant. If pressure drops, a physical hole or cracked flare joint exists. Adding gas without repairing the fracture means the newly charged refrigerant will vent into the atmosphere within days or weeks, while continuously starving your compressor of oil return.
Where do AC refrigerant leaks commonly occur in Dubai homes?
Over 85% of refrigerant leaks in the UAE occur at indoor and outdoor brass flare nut connections (due to compressor vibration loosening the fittings), corrosion pinholes along the copper U-bends of the indoor evaporator coil, or leaking Schrader access ports on the service valves.
How do your technicians locate microscopic pinhole leaks?
We isolate the indoor and outdoor sections, pressurize the lines up to 350–400 PSI using dry nitrogen, and sweep all joints with ultrasonic electronic halogen leak sniffers. For inaccessible ceiling runs, we apply bubble-solution pressure decay testing to observe micro-fissures.
Can copper coil pinholes be brazed permanently?
Yes. Our certified HVAC technicians use high-silver content brazing rods (15% silver alloy) with an oxygen-acetylene torch under a continuous dry nitrogen purge. This bonds permanently with the copper pipework without melting through adjacent aluminum cooling fins.
Stop The Leak Permanently
Don't let continuous gas leaks burn out your AC compressor. Our technicians pinpoint and braze leaks on the spot across Dubai.
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