In Dubai, air conditioning is not a luxury. It runs for most of the year and almost nonstop from May to October. That workload, plus fine sand and humidity, is why ACs here need more care than in milder climates. A little regular maintenance keeps your home cool, lowers your DEWA bill and prevents the breakdowns that always seem to happen on the hottest day.
Monthly: Things You Can Do Yourself
Clean or Check the Filters
Dusty filters are the most common cause of weak cooling. In summer, check split unit filters every two to four weeks. Slide them out, rinse with lukewarm water, let them dry fully and refit. Ducted systems usually have a return air filter in the ceiling grille.
Look and Listen
- Is the airflow weaker than usual?
- Any new rattles, clicks or humming?
- Any water dripping from the indoor unit?
- Is the room taking longer to cool?
Small changes are early warnings.
Keep the Outdoor Unit Clear
Leave at least 50 cm of space around the condenser on balconies and roofs. Do not cover it or store boxes against it, as it needs airflow to get rid of heat.
Every 3 to 6 Months: Professional Service
A full service goes further than a filter clean. A technician should:
- Clean the indoor coil and blower wheel
- Wash the outdoor condenser coil
- Clear and treat the drain tray and line
- Check refrigerant pressures and electrical parts
- Test the thermostat and temperatures
Book AC maintenance before summer starts, ideally in March or April, and again in late summer.
Before Summer: The Big Checks
Deep Clean
Coils clogged with dust and sand can noticeably reduce cooling. A deep AC cleaning washes the coil and blower so air flows freely again.
Drain Tray
Slime builds up in drain trays and blocks the line, which leads to drips and ceiling stains. Ducted units above false ceilings are the riskiest. Ask for AC drain tray cleaning as part of the service.
Musty Smell?
A musty smell when the AC starts usually means mould on the coil or blower. AC mould removal cleans and treats it.
Signs You Need a Repair, Not a Service
- The AC runs but blows warm air
- Ice forms on the pipes
- The outdoor unit does not start
- The breaker trips when the AC switches on
- Water leaks every day
These need a technician. See AC repair in Dubai or our guide to an AC that is not cooling.
Simple Habits That Save Power
- Set bedrooms to 24 to 25 degrees rather than 18.
- Close curtains on sunny windows in the afternoon.
- Run fan mode for a few minutes before switching off to dry the coil.
- Keep doors closed between cooled and uncooled rooms.
A Year-Round AC Calendar for Dubai
- January to February: a good time for a deep clean and any repairs while technicians are less busy.
- March to April: full service before the heat arrives. Check drains, refrigerant and electrical parts.
- May to September: clean filters every two to four weeks. Watch for drips, weak airflow and new noises.
- Late August: a mid-season service for homes that run the AC around the clock.
- October to December: clear any dust from summer and fix small issues before the next season.
Keeping a simple record of service dates and any repairs helps technicians spot repeat problems and is useful for landlords and future buyers.
Frequently Asked Questions
How Often Should an AC Be Serviced in Dubai?
Most homes need a full AC service every three to six months because units run almost all year. Filters should be checked every two to four weeks in summer. Homes with pets, nearby construction or a lot of sand may need more frequent cleaning.
How Much Does AC Servicing Cost in Dubai?
A split AC service typically starts from about AED 150 per unit, with ducted systems costing more because of access and size. Many companies offer a lower price per unit when several units are serviced in one visit, so book the whole home together.
Does AC Cleaning Really Reduce Electricity Bills?
Yes. Dirty filters and coils force the AC to run longer to reach the set temperature. Clean coils transfer heat more efficiently, so the compressor works less, which helps lower DEWA bills during the hottest months.
What Temperature Should I Set My AC to in Summer?
Around 24 to 25 degrees is comfortable for most people and much more efficient than 18 to 20 degrees. Every degree lower adds noticeably to running costs, and very low settings in humid rooms increase condensation and the risk of mould.
Book Before the Rush
From June onwards, AC technicians across Dubai are busy. Booking your service early means a cooler home and fewer surprises in August.