5 min read
Manufacturer service intervals are written for temperate climates. In the UAE, an air conditioner may run for eight months of the year in dusty, and near the coast salty, air. The practical schedule is different.
A realistic baseline
For a typical apartment split unit, a filter clean every four to six weeks during heavy use and a professional service every three to six months works well. The professional visit should include coil cleaning, drain flushing, refrigerant pressure checks and an electrical inspection.
Villas and ducted systems
Ducted and central systems serve more area, run longer and hide their problems inside ceiling voids. Twice-yearly servicing is sensible, with one visit scheduled before summer. Drain line blockages in ducted systems are particularly worth catching early, since the first visible symptom is often water staining a ceiling.
Coastal properties
Salt air corrodes condenser fins and fasteners. In coastal Ajman and Sharjah, outdoor units benefit from a coil rinse and corrosion check twice a year in addition to the standard service.
Signs you are overdue
Weaker airflow than you remember, a musty smell when the unit starts, longer run times to reach the same temperature, or an electricity bill rising with no change in habits. Each of these points to a system working harder than it should.
What servicing actually prevents
Most mid-summer breakdowns are not sudden. They are the end point of months of restricted airflow, a slow refrigerant leak or a capacitor degrading in the heat. Servicing is the point at which those are cheap to fix.