Air cooled chillers are widely used in Ajman’s industrial and commercial facilities for efficient cooling in hot, dry conditions. Despite being easier to install and maintain, these systems are susceptible to wear and malfunction. Timely and expert air cooled chiller repair can save facilities from downtime, production loss, and excessive energy bills.
BestAir Services provides information about typical air-cooled chiller failures, efficient repair methods, and best practices for long-term system health in this guide.
Why Industrial Facilities Depend on Air Cooled Chillers
Air-cooled chillers are often put on rooftops or in open lots to cool factories, warehouses, and processing units. They don’t need cooling towers or water treatment systems like water cooled chillers do, so they’re great for places like Ajman where water is hard to come by.
📊 According to Wikipedia, air cooled chillers are typically used where water is expensive or unavailable and provide cooling capacities from 20 to 500+ tons.
They function by dissipating heat through fans and condenser coils, making them cost-effective and scalable, but only if properly maintained.
1. Compressor Failures – The Most Expensive Breakdown
The chiller’s heart is the compressor. It stops cooling completely when it breaks.
Common reasons:
- Too much heat because the condenser coils are dirty
- Low pressure in the refrigerant
- Problems with electricity or phase loss
🔧 Fix:
- Changing the electrical relay
- Flush the system and change the oil
- Fixing the refrigerant charge and rebalancing
BestAir’s technicians in Ajman are experts at finding out why compressors fail, and they can fix chillers the same day with genuine parts.
2. Refrigerant Leaks – Silent Performance Killer
It can be hard to find a slow refrigerant leak, but it can be very bad over time. Some signs are:
- Less cooling power
- Ice building up on evaporator coils
- High amp draw from the compressor
🔧 Fix:
- Finding leaks with UV dye or an electronic sniffer
- Fixing or replacing broken tubing
- Recharging with the right type of refrigerant
Proper refrigerant management not only restores efficiency but also complies with UAE’s environmental safety codes. BestAir’s technicians ensure refrigerant charging follows ASHRAE standards.
3. Dirty or Damaged Condenser Coils – Energy Drain
Air-cooled chillers’ outdoor coils pick up dirt, dust, and other pollutants, especially in industrial areas.
Consequences:
- Less heat transfer
- Alarms for high head pressure
- Short cycling or safety switches that have tripped
🔧 Fix:
- Cleaning chemical coils
- Fin combing or changing
- Installing the coil guard
Quarterly coil cleaning is recommended for facilities operating in Ajman’s dusty industrial areas. Book your coil cleaning under our commercial chiller maintenance program.
4. Fan Motor or Blade Failure – Poor Airflow
Axial fans are very important for moving air across the condenser coil. Failure can cause the compressor to overheat and shut down.
Signs:
- Sounds like rattling or humming
- Vibration that isn’t balanced
- High pressure for condensation
🔧 Fix:
- Replacing the motor capacitor or relay
- Aligning or replacing the blade
- Test of motor winding
5. Control Board & Sensor Malfunctions – Invisible Errors
Bad sensors or control boards that aren’t set up right can mess up the temperature settings and cause the cycling to go wrong.
Signs:
- Wrong readings on the display
- Cooling that doesn’t happen regularly
- Shut down all of a sudden
🔧 Repair:
- Changing the control parameters
- Replacing or calibrating the sensor
- Updates to the firmware (if needed)
We suggest that you include an annual inspection of your HVAC system’s electronic controls in your maintenance plan.
6. Freeze Damage – A Risk in Idle Systems
It doesn’t happen very often in Ajman’s climate, but chillers that aren’t winterized properly can get damaged by freezing during rare cold spells or when they are turned off.
Tips for avoiding problems:
- Make sure the antifreeze-to-glycol ratio is right in glycol systems
- When systems are down for a long time, drain them.
- Use remote monitoring to get alerts.
Proactive Maintenance to Avoid Major Repairs
According to the U.S. Department of Energy, proactive HVAC maintenance can reduce total equipment failure by up to 75% and improve efficiency by 15–20%.
Key services include:
- Monthly visual inspections
- Seasonal coil cleanings
- Refrigerant pressure checks
- Annual component calibration
Why Choose BestAir Services for Chiller Repairs in Ajman?
- Certified technicians with 10+ years experience
- Rapid onsite repair with genuine parts
- 24/7 emergency HVAC service
- Strong local reputation among factories, hospitals, and logistics companies
Our proven approach ensures minimal downtime and optimized HVAC performance.
Final Thoughts: Don’t Wait for Breakdown – Be Proactive
Air cooled chillers offer unmatched reliability when maintained correctly. By understanding the common causes of failure and applying timely fixes, Ajman’s facility managers can avoid costly disruptions and extend equipment lifespan.
For trusted air cooled chiller repair, preventive diagnostics, and expert consultation, contact BestAir Services today.