Chiller Technician

About the role

This full-time, on-site position in Doha, Qatar, involves maintaining and repairing air-cooled and water-cooled chillers and associated HVAC equipment. The Chiller Technician ensures optimal energy efficiency, reliability, and a comfortable environment for building occupants.

Key responsibilities

• Perform routine inspections, preventive maintenance, and repairs on chillers and related mechanical systems.
• Diagnose and fix electrical faults, bad sensors, wiring issues, and control panel problems.
• Identify cooling issues such as refrigerant leaks, pressure drops, and compressor oil condition.
• Clean condenser coils, check water flow switches, and replace worn components (contactors, fuses, valves, fans).
• Recover, evacuate, and safely recharge refrigerant; drain and replace compressor oil and filters.
• Remove and replace electronic expansion valves, calibrate pressure transducers and temperature sensors, and install new thermistors and safety controls.
• Run system diagnostic tests after maintenance and keep accurate logs of work performed.
• Follow all safety procedures, including lock-out/tag-out protocols.

Required profile

• Technical diploma or ITI in HVAC/Mechanical or a related field.
• 3–5 years of hands-on experience with chillers and HVAC systems.

Required skills

• Electrical fault diagnosis and wiring diagram interpretation.
• Refrigerant handling – recovery, evacuation, and recharge.
• Control panel programming and digital display troubleshooting.
• Pressure transducer and temperature sensor calibration.
• Lock-out/tag-out safety procedures.