Commercial Chiller Repair Services Across the UAE
Fast, professional repair for Carrier, Trane, York, Daikin, Lennox, Climaveneta & all major chiller brands — serving hotels, hospitals, malls, and commercial buildings across Dubai, Sharjah, Ajman, Abu Dhabi, Fujairah & RAK.
- 10+ Years Experience
- All Major Brands Covered
- OEM-Standard Repairs
- 4-Hour Emergency Response Time
- UAE-Compliant Refrigerant Handling
About This Service
Ali Hassan Marine’s commercial chiller repair team works with building owners, facility managers, and HVAC contractors to restore failed or underperforming chiller systems. We handle everything from fault diagnosis and refrigerant recovery to compressor replacement and control system repair. Every repair is carried out to OEM standards using quality components that ensure lasting performance.
Commercial Chiller Repair Solutions We Provide
System Diagnostics & Fault Analysis
We begin with a thorough chiller inspection — measuring operating pressures, temperatures, electrical performance, and refrigerant condition. Accurate diagnostics prevent unnecessary parts replacement and ensure the real fault is resolved.
Refrigerant Recovery, Repair & Recharge
Refrigerant leaks are among the most common causes of chiller performance loss. We safely recover refrigerant, locate and repair all leak points, and recharge the system to manufacturer specifications.From centralized chilled water plants to compact direct expansion (DX) units, we design climate control solutions engineered for the high-corrosion, high-humidity maritime environment. Our systems prioritize energy efficiency and crew comfort, utilizing CuNiFe heat exchangers to withstand constant saltwater exposure.
A failing compressor leads to warm air, high energy bills, and eventually total chiller shutdown. We repair or replace scroll, screw, and reciprocating compressors using compatible, high-quality units
Heat Exchanger Cleaning & Repair
Fouled evaporators and condensers reduce heat transfer and force the chiller to consume more energy. We clean and repair shell-and-tube and plate heat exchangers to restore full cooling capacity.
Control Panel & Sensor Repair
Faulty controllers, sensors, or safety switches cause nuisance trips and incorrect operation. We diagnose and repair electronic control systems to restore reliable, accurate chiller management.
Emergency Chiller Repair
A chiller breakdown in a hotel, hospital, or shopping mall demands urgent attention. Our emergency response team provides rapid on-site service to minimize downtime and restore cooling quickly.
Common Chiller Problems We Fix
Commercial chillers in hotels, supermarkets, hospitals, and office buildings are under constant demand — and even minor faults can disrupt comfort cooling, refrigeration, and critical building systems. From compressor failure and refrigerant leaks to evaporator fouling and thermostat faults, our engineers diagnose and resolve the full range of commercial chiller problems — providing fast, professional chiller repair services across UAE commercial and facilities management sectors.
Chiller Not Cooling the Building
Insufficient cooling output is typically caused by low refrigerant charge, dirty coils, or compressor degradation. We identify the specific fault and restore full cooling capacity efficiently.
Chiller Tripping on High-Pressure Fault
Dirty condensers, refrigerant overcharge, or high ambient temperatures cause high-pressure trips. We clean condensers, rebalance refrigerant levels, and address any root causes to prevent recurrence.
Chiller Cycling On and Off Repeatedly
Short cycling damages compressors and wastes energy. It is usually caused by low refrigerant, thermostat faults, or electrical issues. Our engineers diagnose and resolve the underlying problem.
Water Leak from Chiller Unit
Condensate drain blockages, damaged heat exchanger connections, or corroded pipework cause water leaks. We trace leaks accurately and repair them to prevent property damage.
Why Commercial Chillers Fail
Commercial chillers fail for a range of reasons — from deferred maintenance and refrigerant loss to electrical faults and heat exchanger fouling. In UAE commercial buildings, high ambient temperatures and continuous operation place exceptional stress on chiller components, accelerating wear and increasing the risk of unexpected breakdown. Without regular servicing and proactive fault detection, even well-maintained commercial cooling systems will deteriorate — leading to comfort cooling failure, increased energy consumption, and costly emergency repairs.
Lack of Regular Maintenance
Most commercial chiller failures are preventable. Without scheduled servicing, coils foul, refrigerant leaks go undetected, and electrical components degrade silently until a breakdown occurs.
UAE Heat and Dust
Air-cooled chillers in the UAE face extreme ambient temperatures and heavy dust loading. Dirty condenser coils significantly reduce heat rejection capacity, causing high-pressure faults and compressor overloading.
Age-Related Wear
Seals, bearings, contactors, and expansion valves have finite service lives. Regular replacement of wear items prevents cascading failures in aging chiller systems.
Poor Initial Installation or Commissioning
Chillers that were under-specified, incorrectly installed, or never properly commissioned will always struggle to perform. We identify and correct installation-related issues that have never been properly addressed.
Our Commercial Chiller Repair Process
Our commercial chiller repair process begins with a comprehensive system diagnostic to identify the root cause of failure — whether mechanical, electrical, or refrigerant-related. Our engineers carry out targeted repairs to manufacturer specifications, minimising disruption to your building operations and restoring full cooling capacity as quickly as possible. Every repair is followed by a full system performance check, ensuring your commercial chiller is operating efficiently and reliably before we leave your UAE site.
Site Arrival & Initial Assessment
Our engineer arrives, reviews the fault history, and performs a visual inspection before any testing begins. Understanding the operational context speeds up accurate diagnosis.
Full Refrigerant Circuit & Electrical Testing
We measure pressures, temperatures, superheat, subcooling, and electrical parameters to map the fault accurately across the entire refrigerant circuit.
Component Repair or Replacement
Identified faults are repaired using quality parts. All replacement components are documented, and refrigerant handling follows UAE environmental regulations.
Test Run & Performance Verification
The repaired chiller is run under actual load conditions. We verify cooling output, current draw, and operating pressures before completing the job and issuing a service report.
We contacted them for our chiller units and split AC systems at our factory. Their team handled the compressor change professionally and completed the new split AC installations on schedule. Clean work, no mess left behind, and the systems have been running perfectly ever since. Highly dependable.
The team was mobilised quickly to our vessel MV Green Land. They carried out a full compressor overhaul and reinstallation in the ECR room and fitted the new 5-ton 60Hz AC units without any delays. Their understanding of marine electrical systems and refrigeration gave us full confidence. Excellent execution from start to finish.
They serviced all AC units aboard MV White Land, replaced the faulty compressor, and installed both 3-ton and 5-ton 60Hz units. The team worked efficiently within our port window and left the systems fully operational. We will continue working with them for future maintenance across our fleet.
They mobilised to MV AM Princess with a full team and tools. The entire refrigeration system was recovered, flushed, pressure-tested and vacuumed before recharging with R404A. The expansion valve, orifice, and drier cores were all replaced with new parts. The system passed pressure hold for a full hour before recharge. It's running in perfect condition now. Thorough, documented, and professional.
Areas We Serve
📍 Sharjah — Khalid Port, Hamriyah Port, Hamriyah Free Zone, Sajaa Industrial Area
📍 Dubai — Jebel Ali Port, Port Rashid, Dubai Creek, Al Quoz Industrial
📍 Ajman — Ajman Port, Ajman Free Zone
📍 Fujairah — Fujairah Port, Khor Fakkan Container Terminal
📍 Ras Al Khaimah — RAK Port, RAK Free Trade Zone
📍 Abu Dhabi — Khalifa Port, KIZAD, Zayed Port
Need Commercial Chiller Repair in UAE?
Our chiller repair specialists provide fast, professional diagnostics and repair for commercial buildings, hotels, hospitals, and retail facilities across the United Arab Emirates.