Skip AC servicing for a year in Dubai and the consequences arrive in sequence: airflow drops, the unit runs longer, the drain clogs, and the ceiling below your fan coil stains. Service it properly and each component is checked, cleaned, measured, and recorded. This page explains the technical work in detail, because owners who understand their AC make better decisions about it.
Technical AC servicing for Dubai apartments: coil cleaning, refrigerant checks, condensate drain flushing and duct inspection with documented readings for FCUs
The evaporator coil inside your fan coil or split unit is where cooling actually happens, and it fails quietly. Dust in Dubai apartments is fine and constant, and it mats into the coil fins over months. A matted coil cannot transfer heat, so the air leaving the unit is warmer, the unit runs longer to compensate, and electricity consumption climbs while comfort falls. Worse, a cold wet coil with poor airflow freezes, and ice damages the fins when it melts. Our service removes and chemically cleans coils where the contamination warrants it, straightens bent fins, and measures airflow and temperature differential before and after, so the improvement is a number on your report, not a claim.
The condensate drain carries away the water your unit extracts from the air, which in Dubai humidity is a surprising volume every day. Algae grow in the warm wet pipe, dust sticks to it, and the drain blocks gradually until the drip tray overflows. Because the tray sits above your ceiling, the first sign is usually a stain or a drip through a light fitting, which is also an electrical hazard. We flush drains mechanically, check the tray slope and the float switch where fitted, and test flow with a measured pour before we leave. A float switch that cuts the unit off when the tray fills is a cheap upgrade we often recommend, because it turns a flood into a shutdown.
Low gas is the most over-diagnosed fault in the city. A technician who only measures pressure at the service valve may top up a system that is actually losing gas through a leaking joint, which means the problem returns in weeks and you pay twice. On split systems we measure operating pressures against the manufacturer's chart for the ambient temperature, check the superheat, inspect the flare joints and insulation on the pipework, and only then decide whether a top-up, a leak repair, or nothing is needed. Gas type and quantity are recorded on the report. If a leak is found, we quote the repair, because repeatedly recharging a leaking system is money poured into the ceiling void.
Flexible ducting connects your FCU to the ceiling grilles, and it fails in two ways: the insulation tears and condensation forms on the outside, staining the ceiling, or the duct itself splits and dumps cooled air into the ceiling void instead of the room. Both waste the cooling you are paying for. We inspect accessible duct runs, reseal joints, and replace damaged sections. Filters are the simpler story: a blocked filter strangles the whole system, and in Dubai conditions they need checking far more often than the once-a-year habit many owners assume. We fit washable or disposable filters to suit the unit and log the sizes on your file so replacements are automatic on the next visit.
Straight answers, before you book.
For apartments occupied year-round, we recommend two services a year for fan coil units: one before the cooling season and one during it, because dust loading and runtime are both highest in summer. Split systems used daily benefit from the same frequency. Filters may need attention more often depending on location and dust exposure. Your service report includes a specific recommendation based on measured condition, not a generic interval.
Several faults produce this symptom: a matted coil, a blocked filter, a duct split, low refrigerant, or a failing blower motor. Each has a different fix and a different cost, which is why we diagnose before quoting. Temperature and airflow measurements taken at the unit identify the cause in most cases during the first visit, and the readings are documented so you can see the evidence for the recommendation rather than take it on trust.
Both. In central or district cooled buildings, we service everything inside your apartment: the fan coil unit, its controls, drains, ducting, and grilles. The chilled water supply and the building plant sit with the building under service charge, and we tell you when a fault lies on that side so you can refer it to management. For apartments with split units, we handle the full refrigerant circuit as described above.
Speak to a technician now, not an answering service.