Central HVAC Repair in Egypt
Industrial central HVAC, large-capacity VRV / VRF for malls and plants
6-month written warranty on the repair and the replaced part
Agent Site is an independent repair center — not the manufacturer's authorized service or warranty provider.
Central air conditioning maintenance for VRF, ducted, cassette and packaged systems in malls, hospitals, factories and office buildings.
Central HVAC Service with Agent Site
In a mall, hospital, factory or office building, a central AC breakdown in summer hits work and comfort straight away. We service VRF/VRV, ducted and cassette systems as well as packaged rooftop units in Cairo, Giza, Alexandria, the New Administrative Capital, 6th of October City, New Cairo and the North Coast. We check the load, refrigerant pressures, airflow (CFM), controls, drainage and BMS integration.
We work on central systems from brands such as Daikin, Mitsubishi Electric, LG, Hitachi, Carrier, Trane, York, Panasonic, Toshiba and Samsung. The service covers diagnosing inverter boards, charging R-410A or R-32 by weight after the leak is fixed, duct air balancing, coil cleaning and servicing packaged rooftop units.
- VRF/VRV diagnostics using the brand’s own codes and diagrams
- Airflow (CFM) and static pressure measurement for ductwork
- Servicing packaged rooftop units for malls and factories
- Coil cleaning and fixing drain and condensate problems
- Periodic maintenance contracts for buildings
Central HVAC Services
Book a service- Diagnosing Daikin VRV, Mitsubishi City Multi and LG Multi V
- Fixing Inverter Board Faults and Communication Errors
- Charging R-410A and R-32 to the Factory-Specified Weight
- Replacing Electronic Expansion Valves and Thermistors
- Measuring Airflow and Static Pressure on Ducted Systems
- Cleaning Ducted Coils and Blower Wheels
- Servicing Cassette Drain Pumps and Swing Motors
- Servicing Packaged Rooftop Compressors and Condenser Fans
- Diagnosing Central Controllers and BMS Interface Points
- Fixing Condensate Drain Problems and Water Leaks
- Safe Chemical Coil Washing for Malls and Factories
- Periodic Maintenance Contracts for Buildings
Central HVAC Types We Service
VRV / VRF System Repair for Facilities
VRF / VRV (variable refrigerant flow) systems are common in office buildings, hotels and malls: one outdoor unit serves many indoor units, with independent control for each zone. Well-known systems include Daikin VRV, Mitsubishi Electric City Multi, LG Multi V and Samsung DVM.
VRF systems rely on variable-speed inverter compressors and electronic expansion valves (EEVs) to route the right amount of refrigerant to each indoor unit, and some models can cool and heat at the same time. The harder faults are usually in the inverter boards, the pressure sensors, or refrigerant leaks across the long piping network.
Signs it needs service
- An error code appearing on the central control display
- Some indoor units work while others do not cool
- Abnormal vibration noise from the outdoor unit
- The whole system stopping suddenly
- A noticeable rise in the building monthly electricity bill
- A hard-to-locate refrigerant leak (Low Pressure Error)
- Frosting of the outdoor pipes or oil seeping from them
- Unresponsive thermostats in some offices
Common faults
- Inverter PCB failure — one of the most common faults
- Refrigerant leaks in the piping network
- Electronic expansion valve (EEV) failure
- Burned-out scroll compressors
- Outdoor unit condenser fan motor failure
- Communication cable problems (daisy-chain communication error)
- Faulty pressure and temperature transducers
- Clogged oil strainers or indoor filters
What we do
- Reading fault codes and operating data with diagnostic tools suited to the model
- Repairing or replacing inverter boards and electronic boards
- Leak detection with a nitrogen pressure test and leak detectors
- Replacing compressors with original or compatible parts (depending on the model) and weighing in the refrigerant charge
- Setting up central controllers and checking BMS integration
- Cleaning heat exchangers with suitable cleaning agents
- Replacing electronic expansion valves (EEV) and sensors
Care tips
- Keep to regular preventive maintenance (every 3 months, for example) — a VRF system is complex and does not tolerate neglect
- Keep the outdoor units and the space around them clean — check monthly in dusty seasons
- Server rooms need independent backup cooling — if the VRF system stops, the heat damages the equipment quickly
- Protect the communication cables between units — a single break can stop a large part of the system
- Make sure a voltage protector is fitted against power fluctuations
Questions
A Daikin system shows a U0 or U4 code — what does it mean?
On Daikin, U0 usually indicates a refrigerant shortage and U4 a communication error between the indoor and outdoor units. Both need a technician — give us the code and the system model when you call.
Can a VRF system be charged with R-22?
No. Charge only the refrigerant on the outdoor unit's rating plate — R-410A on most systems, R-32 on some newer models. Mixing refrigerants damages the compressor and its oil.
Ducted AC Repair
Ducted (concealed) AC is common in offices, shops and larger homes: a unit hidden above the false ceiling sends air to several rooms through ducts and grilles, so it looks clean and runs quietly. We repair ducted units from Carrier, York, Trane, Sharp and other brands.
A ducted system consists of an indoor unit concealed in the false ceiling, connected to a duct network and an outdoor unit. Its success depends on proper airflow design and clean filters. Common faults include weak airflow, blocked drains, and blower motor failure.
Signs it needs service
- Severely weak airflow from the grilles
- Water leaking from the false ceiling (ceiling damage)
- Banging or vibration noises inside the ceiling
- Foul odors when the AC runs (mold in the ducts)
- Temperature differences between rooms served by the same unit
- The indoor unit freezing up and cooling stopping
- The thermostat not giving a correct temperature reading
Common faults
- Blocked drain pan and algae buildup — one of the most common faults
- Severe fouling of the filters and indoor coil
- Faulty capacitor or blower motor
- Disconnected or damaged duct joints (duct leakage)
- Low refrigerant due to a leak in the flare nuts or pipes
- Faulty wall controller
- Faulty damper that directs the airflow
What we do
- Cleaning and clearing drain pans and drain lines
- Washing the indoor and outdoor coils with pressure-water pumps
- Replacing blower motors with original or compatible parts
- Charging refrigerant and pressure leak detection
- Repairing and reconditioning ductwork (duct insulation)
- Changing filters and sanitizing the unit with disinfectants
- Replacing the thermostat and control boards
- Calibrating air speeds and grille distribution
Care tips
- Clean the filters every two weeks; a clogged filter freezes the coil and damages the motor
- Make sure the drain lines are insulated to prevent condensation over the gypsum ceiling
- Carry out preventive maintenance before summer to avoid water-leak surprises
- Do not fully close the grilles in certain rooms; this creates back pressure on the motor
Questions
The AC is dripping water from the ceiling — what should I do?
Switch the AC off at the controller; if the water is near ceiling lights or wiring, isolate that circuit at the panel and put a bucket under the drip. The cause is usually a blocked drain pan or a faulty drain pump (if fitted) — call 16062 before the gypsum ceiling is damaged.
The airflow is very weak — does the unit need a recharge?
Not necessarily; usually the filters are clogged, the motor is weak, or there is air leakage from the duct itself.
Cassette AC Repair
Cassette ACs are common in shops, pharmacies and open-plan offices: a square ceiling unit that blows air four ways, with a built-in pump that lifts the condensate water out. We repair LG, Samsung, Carrier, Panasonic and other cassette units.
Cassette units are mounted in the center of the ceiling and distribute air through 360 degrees. Their key components are the drain pump that lifts water upward and the float sensors. Common faults are pump failure, fouled swing louvers, and control board failure.
Signs it needs service
- Water dripping directly from the center of the unit
- The swing louvers no longer moving
- Indicator lights blinking an error code
- A continuous buzzing noise from the drain pump
- Weak cooling in certain directions only
- The visible mesh filter clogged with grease (in restaurants)
Common faults
- Drain pump failure — one of the most common faults
- A stuck or dirty water-level float switch
- Faulty swing (louver) motor
- Severe fouling of the filter and indoor coil
- Faulty control board (PCB)
- Low refrigerant
What we do
- Replacing the drain pump with an original or compatible part
- Cleaning the float sensor and clearing the drain path
- Replacing the swing louver motors
- Full washing of filters and coil with grease-dissolving agents
- Repairing or replacing the control PCB
- Charging refrigerant and calibrating pressures
Care tips
- Clean the front filter monthly to keep airflow strong
- Make sure there are no obstacles in front of the discharge air (tall shelves or decor)
- If you hear a water alarm, switch the unit off immediately to prevent flooding
Questions
The cassette AC light blinks and the unit will not run — why?
This is an error code, usually meaning the water pan is full and the pump could not drain it. Switch the unit off and call 16062 for an inspection.
Can a cassette AC be installed in a home?
Yes, provided there is a false (gypsum board) ceiling with enough depth — usually around 30-40 cm, depending on the model.
Packaged AC Unit Repair for Facilities
Packaged units are large rooftop AC units that cool wide open spaces such as factories, large mosques and wedding halls, typically from about 5 to 30 tons of refrigeration or more. We repair Trane, Carrier, York, SKM and other units.
A packaged unit houses all components (compressor, condenser, evaporator, blower) in a single outdoor chassis, with air carried through large ducts. These units face harsh weather and need heavy mechanical and electrical maintenance.
Signs it needs service
- Cooling stopping suddenly across the entire hall
- Huge, unusual electricity consumption
- Banging noises or violent vibration from the rooftop unit
- The unit runs but the discharge air is hot
- Corrosion of the outer sheet metal and rainwater leaking into the duct
- The breaker on the main electrical panel keeps tripping
Common faults
- Compressors burning out from heat and overload — one of the most common faults
- Faulty contactors and control panel components
- Snapped large fan belts
- Condenser coils fouled with dust and sand (loss of heat transfer)
- Faulty 3-phase fan motors
- Refrigerant leaks from vibration-fatigued brazed joints
What we do
- Replacing compressors (scroll / reciprocating) with original or compatible parts, depending on the model
- Overhauling the electrical panel and replacing contactors and overload relays
- Replacing fan belts and calibrating tension
- Chemical washing of the outdoor coils to improve performance
- Repairing refrigerant leaks and weighing in a full charge
- Lubricating and greasing the motor and fan bearings
Care tips
- Check the fan belts monthly with the power isolated at the panel — a snapped belt stops cooling at once
- Wash the outdoor coils regularly with the power isolated at the main panel and low water pressure so the fins do not bend — ideally by a technician
- Make sure the unit doors are sealed tightly to keep dust out of the electrical components
Questions
The packaged unit trips the whole building's power — why?
Usually there is a short in the compressor or the fan motor. Do not keep resetting the breaker — leave the unit isolated and call 16062 before the main panel is damaged.
Central HVAC service areas
We cover Cairo, Giza, Qalyubia, Alexandria, Matrouh (North Coast), Sharqia, Gharbia, Dakahlia. Not sure about your area? Call 16062 and we confirm before booking.
- Cairo
- Giza
- Qalyubia
- Alexandria
- Matrouh (North Coast)
- Sharqia
- Gharbia
- Dakahlia
How We Work
- 01
Call 16062
Tell us the system type, brand and number of units, and send the error code if one is showing. We assign the right technician for the system (VRF, ducted or packaged).
- 02
System Survey
We read the codes and check the power supply and communication between units. On ducted systems we measure static pressure and airflow (CFM); on rooftop units we inspect the compressor and fans.
- 03
Identifying the Cause
It may be the refrigerant charge, a control board, a sensor, the airflow balance or the drain. We give you a report and a price before the repair, and we never replace a compressor before the fault is proven.
- 04
Repair and Calibration
We repair boards or replace parts and charge refrigerant by weight according to the piping layout. Whenever the circuit is opened we pull a vacuum and leak-test it, and we rebalance the airflow if needed.
- 05
Operational Test
We test every zone, check air temperatures and current draw, and hand over maintenance recommendations with the invoice and the written warranty.
Book your ac service
at the earliest available slot for your area
- 6-month written warranty on the repair and the replaced part
- Technician visits daily from 9 AM to 9 PM
Why Agent Site?
Diagnosis Starts on the Phone
On the call we identify the system type, the number of zones and any codes displayed, and whether the problem affects one zone or the whole system — this cuts diagnosis time on site.
Diagnosing the System, Not Just the Unit
A VRF system is a complete network of outdoor units, indoor units and communication wiring, so we check the wiring, addressing and refrigerant piping. On ducted systems we measure airflow, not just how cold the air is.
Equipment Protection
Running an inverter compressor on a low refrigerant charge damages the board and the compressor, so we avoid trial-and-error repairs. Our report helps the facility manager make the maintenance decision.
Original or Compatible Parts, Matched to the Model
We supply sensors, boards, fan motors and expansion valves, matching voltage, capacity and communication protocol — low-quality parts cause recurring errors.
Clear Summer Scheduling
Summer in Egypt puts heavy strain on these systems. The 16062 hotline answers 24 hours; visits run daily 9 AM–9 PM at the earliest available slot.
Worry-Free Handover
After the repair we measure supply and return air temperatures and current draw, and check the drain and filters. Handover is based on actual zone-by-zone testing.
Pricing Transparency
The price is set after inspection
On the phone we give you a rough estimate; the final price is set after the inspection and you approve it before any repair — it depends on the system type, the number of units and the part required. Ask about the inspection fee on the call before we book the visit.
Need a cost idea before the visit?
Call 16062 or WhatsApp — describe the problem and we explain the likely fix before the visit.
Call now WhatsApp — 01050887010Tips to Extend Your AC's Life
- Clean the indoor-unit filters monthly during the season
- Do not add refrigerant before a leak test and a charge-weight check
- Check the drain lines before summer to avoid ceiling leaks
- Keep the outdoor units well ventilated with proper service clearances
- Record the error codes before cutting the power
- Have the duct airflow balanced if some rooms run cold and others hot
- Check pipe insulation if there is condensation in the ceiling
Frequently Asked Questions
How do I book a central AC technician?
Call 16062 and tell us the system type, brand and number of units. If you have a fault code, take a photo of it for the technician before the visit.
What is the difference between VRF and Ducted systems?
VRF is a multi-unit system with individual control and high efficiency. Ducted relies on a single unit with air distributed through ductwork, and it needs accurate balancing.
Do you work on Daikin, Mitsubishi and LG systems?
Yes, we work on Daikin VRV, Mitsubishi City Multi, LG Multi V and Hitachi Set-Free — send us the system model and the error code if one is showing.
Do you offer maintenance contracts for office buildings?
Yes. The contract covers periodic visits, filter and coil cleaning, and code reviews; its price is set after a survey of the system, based on the number of units.
A cassette unit is dripping water — what is the fix?
Switch the unit off; if the water is near ceiling lights or wiring, isolate that circuit at the panel and put a bucket under the drip. It is usually the drain pump, the float switch or a blocked drain hose — the technician clears the drain path and tests the pump.
Do you cover the New Administrative Capital and the North Coast?
Yes, we cover New Cairo, the New Administrative Capital and the North Coast, plus industrial cities within our coverage such as 10th of Ramadan, Obour and Borg El Arab.
Do you install new VRF systems?
Our core work is repairing and servicing existing systems. If you have a new installation project, call us and we will review the request — any installation needs a site survey, a load calculation and a piping layout before a quote.
What is the lifespan of a central air conditioning system?
Typically 15 years or more for VRF systems and packaged units with regular maintenance — it varies with running hours, the environment (dust and salt) and how clean the condensers are kept.
Need a central AC technician?
Central AC down in a heat wave means complaints and disrupted operations. Call 16062 and get the diagnosis started right.
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