6 Common AC Problems in Dubai And Solutions In Dubai
- Author: Taimoor Hameed
- Updated on:
- Air Conditioning, Guide, HVAC
Living in Dubai means dealing with high temperatures almost the whole year. For most residents, the air conditioner (AC) is not just a luxury but a daily necessity. However, like any machine, AC units encounter problems, particularly in hot climates like the UAE.
In this article, we will discuss some common AC problems that Dubai residents encounter, explain the causes of these issues, offer easy solutions for homeowners, provide prevention tips, and outline when to contact a professional AC technician.
Whether you live in Dubai, Sharjah or any part of the UAE, this guide will help you understand and manage your AC better.
6 Common AC Problems And Solutions
In Dubai’s hot climate, AC issues happen often. Here are the six most common problems residents face:
AC Running but Not Cooling
AC Not Turning On
Weak or No Airflow
Water Leaking from AC
Strange Noises
Bad Smell from AC
#1. AC Running but Not Cooling
Why It Happens
This is the most common AC problem. Your AC might be running, but the room still feels hot. Common reasons include:
Dirty air filters blocking airflow.
Low refrigerant gas (Freon leak).
Blocked condenser coils filled with dust or sand.
Thermostat issues (wrong settings or faulty).
Undersized AC unit compared to the room size.
Solutions:
Check the thermostat settings (set to “cool” and correct temperature).
Clean or replace air filters if dirty.
Make sure doors and windows are closed to prevent cool air escape.
Turn off heat-producing devices (oven, lamps) near the thermostat.
Prevention Tips:
Clean filters every 2–3 weeks.
Service AC twice a year before summer and winter.
Install curtains or blinds to reduce heat load inside.
When to Call a Technician
If the AC is still not cooling after basic checks.
If you suspect a gas leak (low refrigerant).
If the AC keeps running non-stop without cooling.
#2. AC Not Turning On
Why It Happens:
Sometimes, the AC doesn’t turn on at all. This could be due to:
Power supply issues (tripped circuit breaker or blown fuse).
Loose wiring inside the unit.
Faulty thermostat not sending signals.
Capacitor failure inside the AC.
Solutions:
Check the power switch and main circuit breaker.
Make sure the thermostat batteries are working.
Reset the AC unit by turning it off for a few minutes and turning it back on.
Prevention Tips:
Don’t overload electrical sockets with too many appliances.
Replace thermostat batteries every 6 months.
Regularly check wiring connections.
When to Call a Technician
If the AC does not start after resetting power.
If there’s a burning smell or sparks from wiring.
If the capacitor or motor has failed.
#3. Weak or No AC Airflow
Why It Happens:
You may feel that the air conditioner is on but the air coming from the vents is very weak or not reaching all corners of the room. Causes include:
Clogged air filters restricting airflow.
Dust and debris inside air ducts.
Faulty blower fan or motor.
Blocked AC vents by furniture or curtains.
Solutions:
Remove and clean air filters.
Make sure vents are open and not blocked.
Use a vacuum cleaner to lightly clean vent openings.
Prevention Tips:
Schedule professional duct cleaning once a year (Dubai homes collect sand and dust easily).
Keep furniture and curtains away from AC vents.
Run the fan mode for a few minutes daily to keep air moving.
When to Call a Technician
If airflow remains weak after cleaning filters.
If you hear unusual sounds from the blower fan.
If multiple rooms have the same issue (duct blockage).
Still facing AC problems?
Don’t let the issue get worse. Book a professional AC technician. A Professional care today saves bigger repair costs tomorrow.
Call Us: +971521879390Talk on WhatsApp#4. Water Leaking from AC
Why It Happens:
AC water leakage is another common issue in the UAE’s homes. Water may drip inside the room or from the outdoor unit. Common reasons include:
Clogged condensate drain line (dirt or algae buildup).
Frozen evaporator coil due to poor airflow or gas shortage.
Improper AC installation with poor drainage setup.
Solutions:
Turn off the AC and clean the drain pipe with a mixture of vinegar and water.
Check if the drain pan is aligned and not overflowing.
Switch off the AC for a few hours if the coil is frozen.
Prevention Tips:
Flush drain lines with vinegar every 2–3 months.
Schedule regular AC servicing before peak summer.
Ensure proper AC installation with a good drainage system.
When to Call a Technician
If leakage continues even after cleaning the drain pipe.
If water starts damaging walls or ceilings.
If you notice ice buildup on the AC coils.
#5. Strange Noises from AC
Why It Happens:
A healthy AC should run quietly. If you hear unusual noises, it means something is wrong:
Banging or clanking → loose or broken parts.
Buzzing sound → electrical issues.
Hissing sound → refrigerant gas leak.
Squealing noise → worn-out fan belt or motor issue.
Solutions:
Tighten loose screws on AC covers.
Make sure nothing is stuck in the fan blades.
If buzzing, switch off AC immediately to avoid electrical hazards.
Prevention Tips:
Keep AC serviced regularly to catch early mechanical issues.
Lubricate moving parts (done during professional AC service).
Don’t ignore minor noises—fix them early.
When to Call a Technician
If noise continues after basic checks.
If you suspect a gas leak (hissing sound).
If the noise is very loud or sudden.
#6. Bad Smell Coming from AC
Why It Happens:
AC should make your home fresh and cool, but sometimes it gives bad smells, which can be unpleasant and unhealthy. Common reasons:
Mold or mildew growth inside ducts due to high humidity.
Dirty filters holding dust and bacteria.
Dead insects or small animals trapped inside ducts.
Burning smell due to electrical issues.
Solutions:
Replace or wash air filters.
Run the AC on fan mode to dry out moisture.
Use a mild disinfectant spray near vents.
Prevention Tips:
Always keep filters clean.
Use a dehumidifier in very humid months.
Schedule duct cleaning to avoid mold buildup.
When to Call a Technician
If the bad smell continues after cleaning.
If you notice burning smells (electrical issue).
If mold keeps returning quickly.
AC Owners Also Ask:
Q1. Why is my AC running but not cooling the room?
This happens due to dirty filters, low refrigerant gas, or blocked coils. First, check and clean the filters, and make sure your thermostat is set correctly. If cooling doesn’t improve, call a technician to check for gas leaks or mechanical issues.
Q2. Why is my AC not working in my house at all?
If the AC doesn’t turn on, check the power supply, circuit breaker, and thermostat batteries. If the unit still won’t start, the issue could be wiring, a faulty capacitor, or a damaged motor.
Q3. How often should I service my AC in Dubai?
Due to Dubai’s dust and heat, AC units should be serviced twice a year—before summer and before winter. Filters should be cleaned every 2–3 weeks for best performance.
Q4. Why is my AC leaking water?
Usually caused by a clogged drain line or frozen coil. Homeowners can flush the drain pipe with vinegar, but if water keeps leaking, a technician should check the drainage and refrigerant levels.
Q5. Why does my AC smell bad?
Bad odors often mean mold growth inside ducts, dirty filters, or trapped debris. Clean or replace filters, and run the AC on fan mode to remove moisture. If the smell continues, professional duct cleaning is required.
Q6. Why does my AC blow weak air?
Weak airflow is caused by clogged filters, dirty ducts, or blower fan problems. After cleaning vents and filters, if the issue remains, duct cleaning or fan repair may be needed.
Q7. What temperature should I set my AC to in Dubai?
The best setting for comfort and energy savings is 23–25°C. Lower temperatures like 18°C don’t cool faster but will increase DEWA bills and put extra pressure on the AC.
Q8. When should I call a professional AC technician?
If AC is not cooling after basic cleaning.
If you see water leakage or frozen coils.
If there’s a hissing sound (possible gas leak).
If strange smells or noises don’t go away.
If the AC doesn’t turn on despite having power.
Final Thoughts
In Dubai’s hot climate, AC problems are very common. But with regular care, cleaning, and timely servicing, you can avoid most issues.
Here’s a quick reminder:
Do basic checks first (filters, thermostat, power).
Try simple home fixes like cleaning filters or drain lines.
Call a professional technician if problems continue.
Your AC is your best friend —keep it healthy, and it will keep you comfortable.
