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Top 5 Common AC Issues in Dubai and How to Fix Them

Updated: Feb 10

A man fixing AC issues in Dubai

Dubai is famous for its intense summer temperatures, often exceeding 40 degrees Celsius. Therefore, air conditioning systems are necessary in such conditions; however, like any mechanical system, they can experience problems that impede performance. We will review some of the top 5 most commonly encountered AC issues here and provide practical solutions to remedy them.

Here are the Top 5 Common AC issues in Dubai and how to fix them:

1.Insufficient cooling:

Insufficient cooling of AC due to dirty filter

During peak summer heatwave, one of the main complaints in Dubai about air conditioners is inadequate cooling. If your AC fails to cool your space adequately, it can be an extraordinarily disorienting and aggravating experience - particularly during those peak summer months!


  • Clean or Replace Filters: Soiled filters can reduce airflow, decreasing cooling efficiency. Therefore, regularly inspecting and replacing AC filters is wise to maintain peak performance.

  • Examine for Refrigerant Leaks: Low refrigerant levels may lead to subpar cooling performance, so consult a professional technician to check for leaks and top off the necessary levels if required.

  • Check Your Condenser Coils: Over time, condenser coils may accumulate dirt and debris, impeding cooling efficiency. Cleaning them up can significantly boost cooling capacity.

2. AC Not Turning On :

Unfortunately, residents in Dubai frequently experience issues with their air conditioners not turning on when necessary - making life very inconvenient in the scorching Dubai heat.


  • Check Thermostats: Make sure your thermostat is set to cooling mode and at your preferred temperature; adjusting it often can suffice.

  • Inspection of Circuit Breaker: Tripped circuit breakers may prevent your AC from turning on. Check your electrical panel for tripped breakers and reset them immediately.

  • Faulty Components: Dirty or damaged capacitors and wiring can prevent your AC from starting correctly, so seek assistance from a certified technician for diagnosis and repairs.

3. Noisy Operation:

A man checking for Unusual noises from AC unit

Unusual noises from your AC unit can be bothersome and may indicate more serious underlying problems.


  • Tighten Loose Parts: Vibrations may loosen screws or bolts within your AC unit, creating loose parts which contribute to unwanted sound levels. Tighten any flexible components carefully to decrease noise levels.

  • Cleaning Away Debris: Foreign objects or debris inside an AC unit can create noise that rattles or buzzes, so be sure to inspect and clean its surrounding environment periodically.

  • Lubricate Moving Parts: Proper lubrication of fan and motor bearings can reduce friction and noise from movement.

4. AC Emitting Unpleasant Odors

AC Emitting Unpleasant Odors An unpleasant scent from your air conditioning system could indicate mold, mildew, or bacteria growth within its system. 


  • Clean or Replace Filters: Dirty filters harbor mold and mildew growth, which causes unpleasant odor issues; regularly replacing or cleaning filters can prevent odor issues altogether.

  • Professional Cleaning: Plan regular professional AC maintenance to have both evaporator and condenser coils cleaned and the drainage system to eliminate bacteria that cause unpleasant smells in your AC unit.

  • Consider Air Purifiers or Install UV Germicidal Lamps: Install air purifiers or UV germicidal lamps into your AC system to help combat mold and bacteria growth. Alternatively, utilize air purification systems like an air filter system for maximum effectiveness.

5. Leakage from Your AC Unit

a professional technician checking for AC refrigerant leaks

Leaks from your air conditioning unit can damage property and signal serious issues. 


  • Clean Clogged Drain Lines: Clogged drain lines can lead to water leakage. To unclog them quickly and effectively, try flushing them with water and vinegar to clear away blockages and open your system.

  • Check for Refrigeration Leaks: Refrigeration leaks can lead to ice buildup that melts away, creating water leakage in your refrigerator. Consult a professional as soon as possible to address these leaks.

  • Verify Proper Installation: Ensure your AC unit is correctly installed with an appropriate drainage system in place and ensure there are no complications with its drainage system.

FAQs (Frequently Asked Questions) 

1. My AC needs to be cooling correctly when running.

Answer: Insufficient cooling could be due to multiple causes, including clogged filters, low refrigerant levels, or dirty condenser coils. Clean or replace your filters before consulting with a technician who can diagnose and solve the issue.

2. My air conditioning unit is making an unusual noise. What could it be caused by?

Answer: Unusual AC noises could be due to loose components, debris in the department, or worn-out elements. To address this issue, tighten any loose parts, clear away debris from the inside, lubricate moving parts if applicable, and consider consulting with an HVAC technician if the noise continues. If it persists further, it would be wise to have them come to inspect and repair your AC unit as soon as possible.

3. How can I prevent my AC from emitting unpleasant odors?

Answer: To reduce unpleasant odors from your AC, regularly change or clean its filters to stop mold and mildew growth; arrange professional maintenance of coils and drainage system; use air purifiers or UV germicidal lamps to enhance air quality while decreasing bacteria that contribute to bad smells; use air purifiers or UV germicidal lamps as air quality improvers for maximum bacteria reduction and reduced odor-causing bacteria counts.

4. What steps should I take if my air conditioner leaks water? 

Answer: Water leakage could be due to clogged drain lines or refrigerant leaks, so start by clearing them using a solution of vinegar and water before seeking professional assistance to inspect for refrigerant leaks and ensure proper installation of your AC unit.


visits to Maintaining an effective air conditioning system in Dubai is vital to comfort and well-being. By promptly addressing these common AC issues and applying the suggested solutions, you can ensure it performs optimally even during the hottest months. Of course, some problems may require professional assistance; regular servicing and maintenance visit Khalifa Al Shaer AC repair will help prolong its life and keep it functioning optimally so you can beat the heat during Dubai summers.

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