Find the leak first
Refrigerant charging in Al Nahda
In Al Nahda, north Jeddah, villas and residential buildings rely on central AC with a sealed refrigerant circuit. If performance drops gradually, the cause is usually a slow leak in the pipes or joints, and charging without fixing the leak first does not last long.
- 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.
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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 |
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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”
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“Wow. Prices are so comfortable. Outstanding services. People are so talented and nice”
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“U can find all u need for air conditioning”
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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 Nahda is a sprawling modern residential area with villas and apartment blocks along a main road, and central AC is widespread. Copper pipes run inside walls or are buried underground, and some buildings have outdoor units on roofs exposed to direct sun and intense heat. High humidity and repeated expansion-contraction cause copper joint corrosion. Our team finds any leak with an electronic tool and vacuum-purges the circuit before correct charging.
Al Nahda is in the north, a sprawling modern residential area mixing villas and apartment blocks along a wide street.
Villas here typically have one central compressor, while apartment buildings may need more than one depending on size.
The AC setup in Al Nahda
- 1
One central compressor per villa
Individual villas in Al Nahda typically have one outdoor compressor connected by pipes distributing cooling throughout the home.
- 2
Multiple compressors in apartment blocks
Apartment blocks may have two or more compressors distributed on the roof, each serving part of the building.
- 3
Copper lines inside walls or underground
Lines are either hidden in walls during construction or buried underground around gardens and landscaping.
Before the visit
Before our visit in Al Nahda
- 1
Coordinate with building management for roof access
If it is a residential building, confirm the management approves team access to the roof and a safe access route exists.
- 2
Inform neighbouring residents
The check may require temporarily shutting the unit off, so inform neighbours of the visit time to avoid surprises.
- 3
Confirm accessibility of exposed pipes if any
If any pipes are exposed, confirm they can be inspected easily and there are no obstacles in front of them.
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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.
Older apartment buildings, are the copper lines more prone to leaks?
Yes, older pipes and original connections may be weaker due to corrosion. We recommend periodic checks to catch leaks early and repair them before performance suffers greatly.
The outdoor unit is on the sunny roof of the building, does the heat harm the circuit?
Yes, intense heat and direct sun increase internal pressure and speed joint corrosion. We recommend installing a light sun shield over the outdoor unit and checks before summer.
Al Nahda's humidity is very high, how does it affect the refrigerant?
High humidity does not harm the refrigerant itself, but it speeds corrosion of copper and joints over time. Good insulation on the pipes helps protect against moisture and corrosion.
My flat is in an apartment block, how do I ensure the team can reach the outdoor unit on the roof?
We need permission from the building management to access the roof and outdoor unit. We recommend coordinating with them in advance and confirming a safe staircase exists and the roof is available on the visit day.
