Split AC Compressor Not Working But Fan Running: Causes & Solutions

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:

burning smell coming out of my ac vents (4)

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

Why does my AC turn on but not cool the room?

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.

How long should a split AC compressor last in Dubai?

In Dubai’s climate, a well-maintained split AC compressor typically lasts 8-12 years. Regular maintenance can extend this lifespan.

Can I replace just the compressor or do I need a new AC?

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.

Why does my AC compressor keep shutting off?

This could be due to overheating, electrical issues, or refrigerant problems. Professional diagnosis is recommended to prevent permanent damage.

Is it normal for my AC to make noise when starting?

A brief, low-humming noise is normal when the compressor starts. However, grinding, screeching, or banging noises indicate problems requiring immediate attention.

How often should I service my split AC in Dubai?

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

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Matthew Gardner

MEP Systems Editor & Mechanical Analyst

Matthew Gardner is a leading technical writer for the DubaiClean MEP division, specializing in mechanical system integrity. With 11 years of experience, he produces authoritative content on water infrastructure and pipeline maintenance. Matthew’s writing focuses on the engineering behind reliable property management. Follow his technical series to understand and maintain the core mechanical systems of your home.

Dubai Clean

As a full-service cleaning company in Dubai, we are also offering specialized services for particular occasions. We offer post construction clean-up for newly established or renovated buildings.