Air conditioning is the most important tool that you have against the UAE’s weather. However, even the most powerful ACs can develop issues over time if not maintained properly. Common AC problems UAE homeowners face range from less cooling in the home to unexpected leaks.
Understanding why these issues happen will help you decide if you can fix AC issues at home or if you will need to call a professional AC repair UAE service. This will ultimately save you precious time, money, and reduce hassle on your end. In this blog, Microcare Technical Services will tell you what the 5 most common AC problems are, what their causes and practical solutions are.
1. AC Not Cooling Properly
Symptoms
- Weaker airflow than usual
- Higher room temperature, even with the AC running all day long
- AC is taking longer to reach the set target temperature
Common Causes
- Clogged Air Filters: Fine desert dust and debris build up quickly in an environment like Dubai, blocking airflow and forcing the AC unit to work harder.
- Low Refrigerant Levels: A refrigerant leak or lower refrigerant levels prevent the AC system from absorbing heat properly, leading to poor cooling.
- Dirty Coils: Coils that are covered with dust and dirt cannot exchange heat optimally.
DIY Fixes
- Clean or Replace Filters: Check your filters every month. If they’re dusty, a quick wash and dry will be enough to clean them. If they’re replaceable filters, then swapping them will also restore optimal airflow.
- Inspect Outdoor Unit: Clear away anything blocking the outdoor unit, stuff like leaves, sand, or other debris around the condenser can cause issues.
- Check Thermostat Settings: Ensure it’s set to “cool” mode and at least two degrees below the ambient temperature.
When to Call AC Repair UAE Experts
- If cleaning filters doesn’t improve cooling.
- If you know the coil needs cleaning (always leave this to a professional).
- When you suspect a refrigerant leak (visible ice on coils or you hear a slight hissing sound).
- If the compressor won’t start or cycles on and off (mostly there’s an icon on the controller to show if the compressor is on or not).
2. Frozen Evaporator Coils
Symptoms
- Ice buildup on indoor coils or refrigerant lines means it’s not being properly circulated with the condenser coil.
- The AC runs continuously but cools unevenly (some rooms may be warmer than others).
- Water is dripping around the indoor unit as ice melts.
Common Causes
- Restricted Airflow: Blocked filters or closed vents restrict the coils of warm air that it needs to keep the refrigerant above freezing temperatures.
- Low Refrigerant: Insufficient refrigerant volume causes evaporator coil temperature to drop below freezing.
- Fans Not Operating Properly: Malfunctioning fans won’t move enough air over the coils for optimal heat/cold exchange, leading to reduced cooling.
DIY Fixes
- Turn Off the Unit: Let the ice melt completely (should take around 4-6 hours) with the fan running.
- Clean Air Filters & Vents: Restore optimal airflow by getting rid of any obstructions or blockages.
- Check Blower Fan: Keep an ear out for weird noises; if the fan isn’t running properly, it may need lubrication or replacement.
When to Call AC Repair UAE Experts
- Persistent icing even after airflow problems are fixed
- If you suspect refrigerant is leaking (only certified technicians are equipped to deal with this)
Note: Do not try to fix it yourself. - Fan motor or any other AC electrical components showing signs of failure.
3. Water Leaks from the Indoor Unit
Symptoms
- You notice puddles forming beneath or around the indoor AC unit
- Weird smells, which most often indicate mold growth
- Stains on the walls or ceilings close to the unit, meaning water leakage.
Common Causes
- Clogged Condensate Drain: Dirt buildup and algae block the drain pan or pipe, forcing water to overflow and drip indoors.
- Improper installation: If a unit isn’t level, then it can cause water to drop indoors rather than flow down the drain.
- Frozen Coils: Ice melting from the coils may overwhelm the drain system, causing water leakage while defrosting.
DIY Fixes
- Clearing Drain Line: Try and use a wet/dry vacuum on the drain access point to remove the blockage. However, we recommend booking an expert technician to do it for you.
- Clean the Drain Pan: Use a mild bleach solution to kill the algae and mold.
- Level the Unit: Check the leveling of the unit; if it is off balance or improper, then adjust the mounting brackets or supports as needed.
When to Call AC Repair UAE Experts
- If the drain line blockage issue returns quicker than you expect
- If you spot mold inside ducts, then schedule a professional cleaning service immediately, as mold is extremely harmful when inhaled
- If structural damage like (ceiling stains, etc.) needs expert attention
4. Unusual Noises from the AC Unit
Symptoms
- Rattling, buzzing, or mechanical grinding sounds when the AC is running
- If you can hear pops or bangs when the compressor turns on or off
- Whistling or hissing noise from the vents or pipes, which often means refrigerant leakage
Common Causes
- Loose Components: AC use daily causes vibrations, these vibrations can loosen screws, fan blades, or panels.
- Worn Bearings: Motor bearings of the air blower can also wear out, which can be identified by an unusual grinding or squealing sound that can be heard easily.
- Refrigerant Leaks: A hissing noise often means leakage in the refrigerant lines.
DIY Fixes
- Tighten Screws & Panels: Check if the exterior panels and fan guard for loose screws, if there are any then gently tighten them and see if the sound goes away.
- Clean Fan Blades: Remove debris buildup on the fan and see if it fixes the noise issue.
When to Call AC Repair UAE Experts
If the above solutions don’t work out and you still keep hearing noises, then we recommend getting in touch with us or any other technical services provider immediately for a solution to these common AC problems UAE.
5. AC Not Turning On
An AC that does not turn on is a nightmare in Dubai’s climate. Here’s how you can troubleshoot it at home:
Causes
- Thermostat Issues: Dead batteries, misalignment of the sensor, or wrong settings can prevent the AC from getting the turn-on signal.
- Tripped Circuit Breakers: Power surges can also cause circuit breakers to trip, which is something rare in a country like the UAE, but it can still be a cause.
- Faulty Capacitors or Wiring: Worn-out capacitors are common in older units, older wiring can get corroded as well which disrupts electrical flow.
Solutions
- Check Thermostat Settings: Make sure your thermostat is set to “Cool” and replace any batteries if necessary. Recalibrate the sensors if you notice that the temperatures are inconsistent.
- Reset Circuit Breakers: Locate where your electrical panel is and flip the AC breaker to “Off” and then back to “On“.
- Inspect Wiring: Look for any visible damage, but do not touch live wires. If you notice any damage, then get in touch with a professional.
When to Call a Professional
If these issues are persistent, then you may need professional help. Try to get in touch with a technical services company and get yourself an inspection to locate and elimate any problems.
Preventive Maintenance Tips to Avoid AC Repair UAE
- Regular Filter Checks: Make it a habit to inspect and clean filters every month. This will prevent a lot of the common AC problems UAE from ever occurring.
- Visual Inspections: Keep an eye out for the visual signs we mentioned above now and then, for both indoor and outdoor units.
- Seasonal Service: Scheduling professional AC servicing at the right time will prevent common AC problems UAE. To find out what time is best for AC maintenance, read our article at this link.
- Upgrade to Smart Thermostats: Programmable smart thermostats will optimize energy usage and reduce the AC’s work to cool your home.
- Keep Surroundings Clear: Make sure that your outdoor unit has at least 2-3 feet of clearance for proper airflow and easy access if you ever need to repair it.
Living in the UAE means relying on your air conditioner more than ever. By finding out and working on fixing common AC problems UAE early, whether it’s strange noises, AC not cooling UAE, or leaks, you can maintain your comfort all year round and even extend the lifespan of your system. Start with simple DIY fixes for filters, but when it comes to coils, drain lines, and ducts, don’t hesitate to book our service for professional AC maintenance in UAE.
