When your split AC fan is running but the compressor isn’t working, it can be frustrating, especially during Dubai’s hot summer months. This comprehensive guide will help you understand why this happens and what you can do about it.
Why Is My AC Fan Running But Not Cooling?
When your split air conditioner’s fan works but doesn’t cool your room, the compressor is likely not functioning. The compressor is the heart of your cooling system – it circulates refrigerant and removes heat from your home.
Common Causes of AC Compressor Failure
Electrical Issues
- Faulty capacitor
- Tripped circuit breaker
- Damaged wiring
- Power supply problems
Refrigerant Problems
- Low refrigerant levels
- Refrigerant leaks
- Improper refrigerant pressure
Thermostat Issues
- Incorrect settings
- Faulty thermostat
- Calibration problems
Mechanical Failures
- Worn out compressor
- Damaged valves
- Motor failure
- Overheating issues
Environmental Factors
- Extreme Dubai heat puts excess strain on the system
- Dust accumulation from desert conditions
- Inadequate maintenance in harsh climate conditions
DIY Troubleshooting Steps
Before calling a professional, try these simple checks:
- Check Your Thermostat
- Ensure it’s set to “cool” mode
- Verify the temperature setting is below room temperature
- Replace batteries if needed
- Inspect Circuit Breakers
- Look for tripped breakers in your electrical panel
- Reset if necessary
- Clean or Replace Air Filters
- Dirty filters restrict airflow and can cause the compressor to shut down
- In Dubai’s dusty environment, filters need more frequent cleaning
- Check Outdoor Unit
- Remove debris around the outdoor unit
- Ensure nothing is blocking airflow
- Look for obvious signs of damage
When to Call Dubai Clean Professional Technicians
While some issues can be resolved with simple DIY fixes, others require professional attention. Contact our certified technicians when:

- You hear unusual noises from the outdoor unit
- There’s visible damage to the components
- DIY troubleshooting doesn’t resolve the issue
- The problem keeps recurring
- Your AC is older than 10 years
- You notice refrigerant leaks (which require specialized handling)
Why Choose Dubai Clean for Your AC Repair Needs?
Our technicians are specially trained to handle the unique challenges of air conditioning systems in Dubai’s climate:
- Expertise in Local Conditions: We understand how Dubai’s extreme heat and dust affect AC performance
- Fast Response Times: We know cooling is essential in UAE temperatures
- Comprehensive Diagnosis: We don’t just fix symptoms; we identify and resolve root causes
- Transparent Pricing: No hidden fees or unexpected charges
- Warranty-Backed Repairs: Peace of mind with our service guarantee
Preventive Maintenance: Avoiding Future Compressor Issues
Regular maintenance is crucial for preventing compressor failures, especially in Dubai’s harsh climate:
- Schedule Bi-Annual Maintenance
- Pre-summer inspection (March/April)
- Mid-season check-up (July/August)
- Keep Outdoor Units Clean
- Regular cleaning to prevent dust buildup
- Ensure proper airflow around the unit
- Monitor Refrigerant Levels
- Low refrigerant can damage the compressor
- Only certified technicians should handle refrigerant
- Replace Aging Components
- Capacitors and contactors wear out faster in hot climates
- Proactive replacement prevents compressor damage
Cost Considerations: Repair vs. Replace
When facing compressor issues, you’ll need to decide whether to repair or replace:
Repair Option | Typical Cost Range | When It Makes Sense |
---|---|---|
Capacitor Replacement | AED 200-400 | When the compressor itself is still good |
Refrigerant Recharge | AED 300-700 | If there are no leaks in the system |
Compressor Repair | AED 1,000-2,500 | For newer, high-quality units |
Full System Replacement | AED 3,000-7,000+ | For units over 10 years old or with multiple issues |
Dubai Clean offers free consultations to help you make the most cost-effective decision for your situation.
FAQ: Split AC Compressor Issues
When your AC turns on but doesn’t cool, the most common cause is a non-functioning compressor. The fan may run, but without the compressor, no cooling occurs.
In Dubai’s climate, a well-maintained split AC compressor typically lasts 8-12 years. Regular maintenance can extend this lifespan.
This depends on your AC’s age and condition. For units under 7 years, compressor replacement might be economical. For older units, full replacement is often more cost-effective.
This could be due to overheating, electrical issues, or refrigerant problems. Professional diagnosis is recommended to prevent permanent damage.
A brief, low-humming noise is normal when the compressor starts. However, grinding, screeching, or banging noises indicate problems requiring immediate attention.
Due to Dubai’s harsh climate, we recommend professional servicing every 3-4 months, with more frequent filter cleaning.
Book Your AC Repair Service Today
Don’t suffer through Dubai’s heat with a malfunctioning AC. Our expert technicians are ready to diagnose and fix your compressor issues quickly and efficiently.
Call Dubai Clean at +971 56 100 4127 or Book Online Now for same-day service and restore your comfort today!
Dubai Clean – Keeping You Cool When It Matters Most