Find the leak first
Refrigerant charging in Al Rabwah
In Al Rabwah, central AC systems in residential towers and hotels need regular refrigerant checks and prompt repair when pressure drops. Alrabih's team locates the leak source, fixes it, then evacuates and charges to the unit's original specification.
- Leak located
- Vacuum and test
- Accurate charge
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
Signs the charge is low
- 1
Weak cooling and a compressor that runs on
The unit runs for hours without bringing the temperature down, or cools very slowly. This is usually the first sign the charge is low and the circuit can no longer move heat efficiently.
- 2
Frost on the pipes or evaporator coil
Ice on the thin pipe or on the evaporator coil points to low refrigerant pressure. Continued running can damage the coil. Where the frost forms helps the technician narrow down the problem area.
- 3
A refrigerator or cold room that will not hold temperature
In commercial or industrial refrigeration equipment, a rising cabinet temperature means stock at risk. Low refrigerant is one possible cause, and confirming it needs pressure readings and a circuit check on site.
Who it's for
Your window or portable unit cools slowly
We check circuit pressure, locate and repair the leak, then vacuum and charge to the type shown on your unit's nameplate.
Ask on WhatsAppYour cold room or commercial fridge will not hold temperature
We measure pressure, identify why the cabinet temperature is rising, repair any leak found, then charge to the correct refrigerant type for that unit.
Ask on WhatsApp
What the work covers
- Pressure check and leak location
- Leak repair before charging
- Vacuum and tightness test
- Charge to nameplate refrigerant
- Run test and performance check
How we work
How we work
- 1
Inspect and locate leak
The technician measures circuit pressure and checks joints and components that corrode in Jeddah's humid, salty air, pinpointing the leak before any other step.
- 2
Repair the leak
The technician repairs the leak point, whether a loose joint, a cracked pipe or corrosion in part of the circuit. The unit is not charged until the repair is confirmed tight.
- 3
Vacuum and pressure test
The circuit is evacuated with a vacuum pump to remove air and moisture, then the reading is watched to confirm pressure holds before refrigerant is introduced.
- 4
Charge and run
The unit is charged to the nameplate type and amount, then run and checked for proper performance on site before handover.
Fix the leak or just top it up?
| Alrabih | The usual way | |
|---|---|---|
| The leak | Found and fixed first | Often ignored |
| Vacuum | Before every charge | Sometimes skipped |
| Refrigerant type | As the nameplate states | May be mixed or swapped |
| Compressor | Protected by correct charge | Worn by wrong charge |
| Refrigeration equipment | AC, fridges and cold rooms | Usually AC only |
Everything your AC needs, from one team
From system design and duct fabrication to installation, commissioning and maintenance.
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Some of our work
Ductwork, rooftop units and diffusers, from work we've completed in Jeddah.
Customer reviews
What our customers say
- Muhammadramzan 2641
“MashaaAllah. Services are so good. Behaviour and kindness 100/100. Prices are less then Market. Fully recommended”
- shahzeb armani
“Wow. Prices are so comfortable. Outstanding services. People are so talented and nice”
- Tawfik AlyawerLocal Guide
“U can find all u need for air conditioning”
Your satisfaction matters to us! If you had a great experience with us, we'd love a 5-star rating and a kind review.
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We come to you anywhere in Jeddah
From Al Shiraa and Al Yaqout in the north to Al Thaghr and Al Quraiyat in the south, with our base in Al Aziziyah.
What sets this district apart
Al Rabwah is a relatively modern neighbourhood with tall residential towers, hotels and commercial complexes, most fitted with unified central AC systems serving multiple floors. These larger systems are more complex than individual splits, and a refrigerant leak affects cooling efficiency across the entire floor or hotel, making precise diagnosis and regular maintenance essential to prevent serious compressor failure.
Al Rabwah sits in central Jeddah, a modern district of tall residential towers, hotels and closely spaced commercial buildings.
Most tall buildings here use central chiller units connected to an air-distribution network through insulated ductwork in the tower walls.
The AC setup in Al Rabwah
- 1
Central chiller system serving the building
Residential towers and hotels here rely on one or two chiller units that cool water circulating through heat exchangers on each floor.
- 2
Central air distribution through insulated ductwork
Cool air is distributed from the plant room through insulated ducts to outlet vents in upper and lower floors.
- 3
Long copper refrigerant runs through the building
Refrigerant travels through long copper lines from the plant room to the outdoor condenser on the roof, creating multiple potential leak points.
Before the visit
Before our visit in Al Rabwah
- 1
Locate the AC plant room
Let us know where the plant room is and how to access it safely, whether on the roof or basement, and ensure there is working space.
- 2
Prepare the previous maintenance records
If maintenance logs and past charging records are available, send them over so we can assess leak frequency and determine the correct pressure and refrigerant type.
- 3
Confirm outdoor condenser access
The condenser is usually on the roof or external wall, so make sure the team can reach it safely to inspect the lines and make repairs.
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FAQ
Questions about Refrigerant charging
Can you just add refrigerant without looking for the leak?
A sealed refrigerant circuit does not consume refrigerant. A low charge means there is a leak somewhere. Adding refrigerant without finding and repairing that leak brings the same fault back quickly and can damage the compressor. The correct sequence is always to locate the leak, repair it, pull a vacuum on the circuit, and then charge to the type and quantity shown on the unit's nameplate.
Where does refrigerant leak in commercial refrigeration equipment?
The most common points are expansion fittings and restrictions on the liquid line, flare joints at the evaporator and condenser, and service valves where the rubber seals have aged. In commercial refrigeration, old copper pipe welds weakened by continuous compressor vibration are also a frequent source. The exact location is found during the site inspection.
Does the refrigerant type affect how the unit performs?
Yes. Every unit is designed for a specific refrigerant type with defined operating pressures and heat transfer properties. Using a different type changes those pressures and can either overload the compressor or reduce cooling output. For this reason the unit is always charged with the exact type shown on its nameplate and no substitute is used.
Is the charging work different for a home AC unit and a commercial refrigerator?
Yes, they differ in several ways. Commercial refrigeration units operate at pressures and with refrigerant types distinct from those in air conditioners, and their target temperatures are much lower. The pipe circuits are also longer and often include multiple distributors and valves that require careful inspection before vacuuming and charging. The nature of each circuit determines the procedure.
Is the charging work different for a home AC unit and a commercial refrigerator?
The core steps are the same: locate the leak, repair it, vacuum the circuit, then charge to the nameplate type. Commercial refrigeration units sometimes have additional valves and components that require a different inspection approach. What each unit needs is determined by the technician on site after pressure readings and a circuit check.
How do I know if the central AC system needs refrigerant charging?
If you notice weak cooling across multiple floors at once or hear the compressor straining, the system may be low on refrigerant. Our team checks the pressure and temperature to confirm.
Is a refrigerant leak in central systems a serious issue?
Yes, a leak increases compressor strain and shortens its lifespan, so we locate and repair the leak source before recharging to prevent waste and future failures.
Does central Jeddah's humidity affect refrigerant leaks?
High humidity and sustained heat increase pressure on copper piping and accelerate corrosion, especially in older systems in residential towers, raising the leak risk.
Do you service the full ductwork distribution system in tall towers?
Yes, we service the compressor, piping and condenser, and inspect all copper runs to pinpoint the leak source precisely before repair and charging.
