Charged right, not just topped up
Split AC refrigerant charging in Thuwal
In Thuwal, far north Jeddah on the coast, coastal villas and split units suffer refrigerant leaks from high humidity and sea salt that corrode copper tubing and joints. Alrabih locates and fixes the leak, fully vacuums the line, then charges it with the correct refrigerant type and amount.
- Leak found first
- Vacuum and test
- Correct charge
Clients We're Proud to Serve
Organisations and companies that trusted Alrabih with their projects.
When your split needs a refrigerant charge
- 1
Weak cooling with a clean filter
If the filter is clean and the compressor is running but the air from the indoor unit is barely cool, the cause is usually low refrigerant from a leak at the flare joints or the outdoor service valves.
- 2
Frost on the pipes or unusual water drips
Frost on the large pipe at the indoor unit, or water dripping from the unit in an unusual way, means refrigerant pressure has dropped below the range set by the manufacturer. The inspection finds the leak before any charging begins.
- 3
A split that was moved and refitted
When a split is removed for painting, renovation or a room move, the flare joints are disconnected and remade. These joints are the most likely source of a leak after refitting, and the system needs a careful check, a vacuum and a fresh charge.
Who it's for
Your bedroom split cools only at night
We find and fix the leak at the flare joints, then vacuum and charge to the nameplate refrigerant type.
Ask on WhatsAppYour split was removed for renovation and refitted
We inspect every remade flare joint, vacuum the full line, then charge and confirm cooling has returned.
Ask on WhatsApp
What the job covers
- Check flare joints and valves
- Repair or remake flare
- Vacuum line and pressure test
- Charge to nameplate refrigerant type
- Run unit confirm cooling
How we work
How we work
- 1
Describe the fault
Tell us on WhatsApp what is happening and send a photo of the outdoor unit nameplate so we know the refrigerant type before we arrive.
- 2
Inspect and find the leak
The technician checks the flare joints at the indoor unit and the service valves at the outdoor unit and locates the leak before taking any further step.
- 3
Repair and vacuum
We tighten or remake the flare joint as its condition requires, then vacuum the line and watch the pressure hold to confirm the line is tight.
- 4
Charge and run
We charge with the nameplate type at the amount the inspection determines, then run the unit and confirm that cooling has returned to the normal level.
Fix the leak first or just top it up?
| Alrabih | The usual way | |
|---|---|---|
| The leak | Found and fixed first | Ignored, charged over it |
| Flare joint | Checked, remade if needed | Not checked |
| Vacuum | Before every charge | Often skipped |
| Refrigerant type | Nameplate only | Whatever is available |
| Line moisture | Removed by vacuum | Left inside the line |
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Some of our work
Ductwork, rooftop units and diffusers, from work we've completed in Jeddah.
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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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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
Thuwal is a modern coastal zone with large villas and mid-rise residential blocks spread across wide land, exposed to very high sea humidity and salt in the air that accelerates metal corrosion. Copper tubing in split units is more prone to rust and puncture in Thuwal's coastal environment, especially at joints and exposed points. Long runs between indoor and outdoor units (15, 25 metres) multiply weak joints, and incomplete vacuum before charging leaves moisture that worsens corrosion.
Thuwal lies at the far northern coast of Jeddah, a seaside residential zone with spacious villas and modern blocks facing the Red Sea directly.
Most outdoor units in Thuwal are mounted on external walls or roofs exposed directly to sea humidity, and leaks develop faster in tubing and joints exposed to salt air.
The AC setup in Thuwal
- 1
Coastal split with salt-exposed tubing
Copper tubing in Thuwal is exposed directly to sea salt, especially on external walls and open roofs.
- 2
Outdoor units on sea-facing façades
Most outdoor units are mounted on sea-facing façades, exposing them to constant humidity and salt.
- 3
Strict vacuum standards for humid environments
In Thuwal's very humid environment, incomplete vacuum causes rapid corrosion problems, so we use highly precise measuring equipment.
Before the visit
Before our visit in Thuwal
- 1
Confirm safe access to the outdoor unit on the sea-facing wall
The unit may be on a high façade or difficult spot, so confirm the team can reach it safely without risk.
- 2
Inspect tubing for rust stains or white salt deposits
Before our visit, look at the tubing and check for brown rust or white salt deposits, and tell us what you see.
- 3
Tell us about any drainage issues or surrounding conditions
If there are drainage issues or fans or other equipment near the unit, let us know to make inspection easier.
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FAQ
Questions about Split AC refrigerant charging
Does the split have to come off the wall to be recharged?
Usually not. Charging is done at the service valve on the outdoor unit, and if the leak is at the flare joints behind the indoor unit we reach them by lifting the lower cover or tilting the unit on its bracket. It only comes down when the joint is inside the wall.
Where do leaks usually occur in a wall split?
The most common points in a wall split are the flare joints at the indoor unit, which loosen over time from vibration, and the service valves at the outdoor unit. In Jeddah's humid and salty air, oxidation at copper connections can develop faster, which raises the chance of a leak.
Does the charging process differ when a split has been moved?
When a split is moved, the flare joints are disconnected and remade, and this is when air and moisture enter the line. A full vacuum before charging becomes especially important, and the technician checks every remade flare joint before the line is closed.
Why does my split cool only at night?
This is a common sign of low refrigerant. At night, lower outdoor air temperature lets the compressor partly compensate for the shortage. During Jeddah's daytime heat, the reduced charge is not enough and cooling weakens or stops. The inspection confirms whether this is the cause or whether another factor such as the compressor or capacitor is involved.
Does the length of the copper pipe run affect how much refrigerant is needed?
Yes, a longer copper pipe run between the two units requires more refrigerant. The site inspection measures the actual run length, and the technician sets the charge amount based on the nameplate figure and the installed pipe length.
My AC is near the coast, does salt air speed up refrigerant loss?
Yes, sea salt and high humidity corrode copper quickly, causing punctures and leaks in tubing and joints. Leaks in Thuwal are more common than inland areas.
My copper tubing shows brown rust stains on the surface, is that dangerous?
That is early corrosion from salt. We inspect it quickly because rust can progress to a puncture and leak. Cleaning and protective coating may help if no hole has formed yet.
The high humidity here leaves moisture inside the tubing even after charging?
Yes, if the line is not fully vacuumed before charging, residual moisture reacts with refrigerant and causes corrosion and poor efficiency. Our vacuum is thorough and complete.
After fixing a leak in this salty coastal environment, how do you prevent it from recurring quickly?
We use corrosion-resistant repair materials and apply protective coating to repaired joints, but complete vacuum and precise charging is the key step to keep moisture from returning.
