Charged right, not just topped up
Split AC refrigerant charging in Al Lulu
In Al Lulu, north Jeddah, refrigerant charging for split units demands careful diagnosis. A unit cooling only at night or blowing warm air likely has a leak that must be found and sealed before charging can work.
- Leak found first
- Vacuum and test
- Correct charge
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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
Al Lulu comprises modern villas and residential blocks spread across wide-open spaces with leafy streets between buildings. Split units are easily positioned on facades and roofs, but the copper runs extend long distances from indoor to outdoor units because homes are larger than in older quarters. These long runs and direct sun exposure on the pipework increase the risk of slow leaks over time.
Al Lulu sits in north Jeddah, a district of modern villas and apartment blocks with spacious gaps between buildings and open layout.
Most villas and blocks here run multiple split units with long copper runs extending to exposed rooftops.
The AC setup in Al Lulu
- 1
Multiple splits with long copper runs
Villas and blocks in Al Lulu typically have several split units with long copper lines running through walls and across roofs.
- 2
Outdoor units on exposed rooftops
Outdoor units sit on open roofs in direct sun and heat, putting extra pressure on the refrigerant circuit.
- 3
Variable-quality copper insulation
Some copper lines may be poorly insulated or the insulation has deteriorated from heat and coastal humidity over time.
Before the visit
Before our visit in Al Lulu
- 1
Ensure access to the outdoor unit
Let us know if the rooftop unit needs a key or building management approval so we can access it on the day.
- 2
Identify all indoor units to inspect
If you have multiple split units, tell us how many and where they are installed so we can inspect all the copper connections.
- 3
Provide nameplate data for refrigerant type and amount
Find the nameplate label on the outdoor unit showing the refrigerant type and required amount for your specific model.
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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 split only cools at night, is a simple top-up enough?
No, there may be a leak in the copper lines. We inspect the whole system for leaks, fix it, then evacuate and charge to the nameplate type and amount.
The copper runs in my villa are very long, does this cause the problem?
Yes, long runs exposed to direct sun are more prone to leaks. We inspect them carefully and ensure proper insulation if it is missing or worn.
Do heat and sun exposure mean I need annual refrigerant top-ups?
If the system is properly sealed, you should not need regular top-ups. If you do need repeated charging, there is an active leak that must be found and fixed.
What is the difference between a simple top-up and a full charge after repair?
A simple top-up adds refrigerant only, but any leak will lose the new charge within weeks. A full charge after repair requires evacuating the copper lines to remove moisture and air, then filling to the nameplate amount.
