Split AC blowing warm air, leaking water or showing an error code? FixFast LLC repairs wall-mounted and inverter split ACs across Dubai. A technician comes to you, tests the whole system and explains the repair plan before any work starts.
When a split AC stops cooling in Dubai, it isn’t something you can wait a week to fix. FixFast LLC offers split AC repair Dubai residents can book for the same day, covering wall-mounted split units, inverter and non-inverter models and multi-split systems in apartments, villas, offices and shops.
Our technicians test the whole system before replacing anything: the indoor unit, the outdoor unit, the refrigerant pressures, the electrical supply and the controls. That’s how we find the actual cause the first time, rather than topping up gas or swapping a part that wasn’t the problem. You get a clear repair plan before any work starts and a written warranty when the job is done.
If you’re searching for split AC repair near me, our technicians already work across Dubai every day, so a visit can usually be arranged quickly.
Low gas, blocked coils, failed compressor or fan, faulty sensors. Full diagnosis on site.
Blocked drain lines, dirty trays, frozen coils and wrong installation slope fixed.
Leak found and repaired first, then the system is vacuumed and charged to the correct weight.
Indoor and outdoor control boards, sensors and error codes on inverter split ACs.
Capacitors, contactors, fan motors and compressor faults on the outdoor unit.
Rattling, clicking, buzzing and musty smells from the indoor or outdoor unit.
These are the split AC faults we’re called out for most in Dubai homes and offices, what usually causes them and how we fix them.
| Problem | Most likely cause | How we fix it |
|---|---|---|
| Blowing air but not cold | Low refrigerant from a leak, dirty coils, failed capacitor or compressor | Pressure and current tests, leak repair, coil clean, part replacement |
| Water dripping from the indoor unit | Blocked drain pipe, dirty drain tray, frozen evaporator coil | Flush the drain line, clean the tray, find out why the coil froze |
| Outdoor unit not starting | Failed start capacitor, contactor, or no power from the isolator | Electrical tests, replace the capacitor or contactor |
| AC turns on and off every few minutes | Dirty filters, faulty sensor, low gas or an oversized unit | Clean, test sensors, check gas pressure and operation |
| Error code on the display | Sensor, PCB, communication or protection fault | Read the code, test the circuit it points to, repair at component level where possible |
| Ice on the pipes or coil | Low gas, blocked filter, indoor fan running too slow | Defrost, check airflow and refrigerant charge |
| Loud noise or vibration | Loose panels, worn fan motor bearings, failing compressor | Tighten mountings, replace the motor or investigate the compressor |
| Bad smell from the vents | Mould on the coil and blower, stagnant water in the tray | Deep clean of coil, blower and tray, antibacterial treatment |
| Remote not responding | Batteries, receiver board or display PCB | Test the remote, then the receiver and display board |
A split AC is a sealed system. It doesn’t use up refrigerant, so if the gas is low, there’s a leak. Topping it up without fixing the leak only buys a few weeks, and running an AC that is short of gas can damage the compressor.
Our gas service follows the right order:
If the leak is inside an indoor or outdoor coil that can’t be sealed reliably, we’ll show you the options before going further.
Most split ACs sold in Dubai now use inverter technology, which saves power by varying the compressor speed. It also means more electronics: an indoor PCB, an outdoor inverter board, temperature sensors on the coils and pipes, and a communication line between the two units.
When an inverter split AC shows an error code, it’s pointing to a circuit, not a part. A communication error can be a loose connector, a damaged cable or a failed board. A sensor error can be a sensor, its wiring or the board reading it. Our technicians test each one before quoting, and repair boards at component level where it’s safe and economical. Dubai’s heat and voltage fluctuations are hard on outdoor inverter boards, so we also check the supply and the board’s cooling when we find one has failed.
Send a photo of the error code and your model label on WhatsApp before the visit, and the technician can arrive with the right parts.
Some split AC problems have a simple cause. Try these first. They’re safe and need no tools.
The Dubai Electricity and Water Authority recommends cleaning AC filters at least every three months and setting the thermostat to 24°C or higher to keep units efficient. If the AC still isn’t cooling after these checks, the fault needs a technician.
Book a technician today. We carry common parts and finish most split AC repairs in a single visit.
Send the brand, the fault and a photo of any error code. We confirm an arrival window.
Indoor unit, outdoor unit, gas pressures, electrics and controls are tested on site.
You approve the repair plan in writing before any work starts.
We repair, then measure outlet air temperature and current draw before we leave.
Timing depends on the fault, the brand and the parts. We explain the repair plan after diagnosis. As a guide, here’s how long common repairs take:
| Repair | Typical time | Notes |
|---|---|---|
| Filter, coil and drain cleaning | 1 to 2 hours | Fixes most weak cooling, smell and leak complaints |
| Capacitor or contactor replacement | 30 to 60 minutes | Common cause of outdoor units that won't start |
| Fan motor replacement | 1 to 2 hours | Indoor blower or outdoor fan |
| Leak repair, vacuum and gas charge | 2 to 4 hours | Depends on where the leak is |
| PCB or sensor replacement | 1 to 2 hours | Some boards need to be ordered |
| Compressor replacement | Half to full day | Confirmed after checking that the compressor has failed |
Repair is usually worth it when the unit is under about eight years old and the fault is a capacitor, fan motor, sensor, board or leak. Replacement makes more sense when the compressor fails on an older unit, the coils are badly corroded, or the AC uses an old refrigerant that is hard to source. We’ll give you an honest view either way.
Our technicians work on the split AC brands sold across the UAE, inverter and non-inverter.
Gas, electrics and controls are measured, so we repair only the real fault.
Written repair plan before work starts, so you know what will be done.
Technicians across Dubai, with common parts on the van.
Every repair comes with written warranty terms.
Our technicians cover homes, offices and shops across the city, including:
Split AC repair often goes hand in hand with regular servicing. These pages cover the rest:
Tell us your AC brand and what it’s doing. A FixFast technician will call you back to confirm a time.