Certificate in Split Air-Conditioning Maintenance

The Certificate in Split Air-Conditioning Maintenance is designed to provide learners with practical knowledge and technical skills required for the inspection, servicing, cleaning, troubleshooting, repair, and preventive maintenance of split air-conditioning systems used in residential, commercial, institutional, and light-service environments.

The program introduces the operating principles and major components of split air-conditioning systems, including indoor and outdoor units, compressors, condensers, evaporators, fans, refrigerant piping, expansion devices, filters, thermostats, sensors, electrical components, condensate drains, and control systems. Learners will develop systematic maintenance skills for maintaining reliable cooling performance and identifying early signs of equipment failure.

The course emphasizes routine servicing, filter and coil cleaning, condensate drain maintenance, electrical inspection, refrigerant-system checks, airflow assessment, temperature measurement, pressure monitoring, leak detection, fan and motor inspection, compressor checks, and troubleshooting of common operating problems. Emphasis is placed on preventive maintenance, energy efficiency, safety, documentation, and professional service practices.

Skills Covered

• Fundamentals of split air-conditioning maintenance

• Split AC system operation

• Wall-mounted split AC systems

• Inverter and fixed-speed systems

• Indoor and outdoor unit components

• Refrigeration cycle fundamentals

• Compressor inspection

• Condenser inspection and cleaning

• Evaporator inspection and cleaning

• Indoor fan and blower maintenance

• Outdoor fan and motor maintenance

• Air filters and filter maintenance

• Refrigerant piping inspection

• Pipe insulation inspection

• Refrigerant leakage awareness

• Thermostats and temperature sensors

• Remote-control and control-system checks

• Electrical components and connections

• Capacitors, contactors, relays, and overload protection

• Condensate drain systems

• Drain pan cleaning

• Drain blockage detection

• Airflow and ventilation checks

• Temperature measurement

• Refrigerant pressure measurement

• Basic superheat and subcooling awareness

• Refrigerant leak detection

• Refrigerant recovery and charging awareness

• Vacuum and evacuation awareness

• Electrical testing

• Multimeter operation

• Clamp meter awareness

• Voltage, resistance, and continuity checks

• Capacitor testing

• Motor and compressor electrical checks

• Control-circuit inspection

• Preventive maintenance planning

• Daily, monthly, and seasonal maintenance

• Indoor-unit servicing

• Outdoor-unit servicing

• Coil cleaning

• Filter cleaning and replacement

• Fan and blower cleaning

• Drain-line cleaning

• Condenser cleaning

• Refrigerant-system inspection

• Electrical panel and terminal inspection

• Fastener and connection checks

• Vibration and noise monitoring

• System performance checks

• Cooling-performance assessment

• Poor cooling troubleshooting

• Airflow problems

• Water leakage problems

• Refrigerant-related faults

• Compressor short cycling

• Electrical trips and overloads

• Fan and motor faults

• Sensor and thermostat problems

• Remote-control and communication faults

• Ice and frost formation

• Condenser overheating

• Unusual noise and vibration

• Odour and indoor-air-quality concerns

• Preventive corrective action

• Maintenance scheduling

• Equipment condition assessment

• Spare-parts and consumables awareness

• Maintenance records and service history

• Service reports and checklists

• Energy-efficiency maintenance

• Safe refrigerant handling

• Electrical safety

• Pressure safety

• Working-at-height awareness

• Personal protective equipment

• Environmental practices

• Site housekeeping and professional service practices

Why Join This Program?

• Develop practical skills in split air-conditioning maintenance and servicing.

• Understand the operation and maintenance requirements of indoor and outdoor split AC units.

• Learn professional procedures for cleaning filters, coils, fans, drains, and other components.

• Develop skills in inspecting electrical, refrigeration, mechanical, and control components.

• Learn how to measure temperatures, pressures, airflow, and other operating conditions.

• Understand refrigerant leakage, undercharging, and other common refrigeration problems.

• Develop practical troubleshooting skills for poor cooling, water leakage, icing, noise, and electrical faults.

• Learn how to inspect compressors, motors, capacitors, contactors, relays, sensors, and thermostats.

• Understand preventive maintenance schedules and routine service requirements.

• Learn how equipment cleanliness and airflow affect energy efficiency and cooling performance.

• Develop awareness of refrigerant recovery, evacuation, leak detection, and charging procedures.

• Learn how to identify early warning signs before major equipment failures occur.

• Develop skills in recording maintenance activities and equipment service history.

• Improve safe handling of electrical systems, refrigerants, chemicals, tools, and access equipment.

• Learn professional customer-service and maintenance-reporting practices.

• Prepare for practical responsibilities in HVAC maintenance, residential air-conditioning, facilities management, and technical service operations.

Course Objective

The objective of the Certificate in Split Air-Conditioning Maintenance is to develop practical and technical competence in the inspection, servicing, preventive maintenance, troubleshooting, and basic repair of split air-conditioning systems. The program aims to equip learners with the ability to inspect and clean indoor and outdoor units, maintain filters, coils, fans, and drainage systems, check electrical and refrigeration components, monitor operating performance, identify common faults, support refrigerant service procedures, improve energy efficiency, maintain service records, and carry out maintenance activities safely and professionally.

Learning Outcomes

Upon successful completion of the program, learners will be able to:

• Explain the fundamental operating principles of split air-conditioning systems.

• Identify different types of split AC systems and their applications.

• Identify major indoor and outdoor unit components.

• Explain the functions of compressors, condensers, evaporators, expansion devices, fans, and controls.

• Explain the basic refrigeration cycle used in split air-conditioning.

• Identify common split AC maintenance tools and service equipment.

• Safely use basic temperature and pressure measurement instruments.

• Use a multimeter for basic HVAC electrical checks.

• Conduct visual inspections of indoor and outdoor units.

• Inspect equipment mounting, alignment, clearances, and physical condition.

• Remove, clean, inspect, and replace air filters where required.

• Clean and inspect evaporator coils and indoor fan assemblies.

• Clean and inspect condenser coils and outdoor fan assemblies.

• Inspect fan motors, blades, blowers, and associated mechanical components.

• Inspect refrigerant piping, fittings, insulation, and visible connections.

• Identify signs of refrigerant leakage or damaged insulation.

• Inspect condensate drain pans, drain lines, and drain outlets.

• Clean blocked or restricted condensate drainage systems using appropriate procedures.

• Check indoor and outdoor airflow conditions.

• Measure room, return-air, and supply-air temperatures.

• Measure basic refrigerant system pressures using suitable equipment.

• Understand the diagnostic use of basic superheat and subcooling measurements.

• Conduct basic refrigerant leak detection procedures.

• Understand refrigerant recovery, evacuation, and charging requirements.

• Inspect electrical terminals, wiring, connections, and control components.

• Test basic voltage, resistance, and continuity conditions.

• Test capacitors and identify abnormal component conditions.

• Inspect contactors, relays, overload protection, and other electrical components.

• Check compressor electrical and operating conditions.

• Inspect thermostats, temperature sensors, and control devices.

• Check remote-control and indoor/outdoor communication functions.

• Monitor abnormal noise, vibration, overheating, and operating conditions.

• Diagnose poor cooling performance.

• Identify causes of insufficient airflow.

• Diagnose condensate water leakage and drainage problems.

• Identify refrigerant undercharge and leakage symptoms.

• Diagnose basic compressor short-cycling conditions.

• Identify fan and motor faults.

• Diagnose common capacitor, contactor, relay, and overload problems.

• Diagnose basic thermostat and sensor faults.

• Identify icing and excessive frost conditions.

• Identify possible causes of condenser overheating.

• Investigate unusual noise and vibration.

• Identify basic odour and cleanliness-related indoor-unit problems.

• Apply preventive maintenance procedures to split air-conditioning systems.

• Develop basic daily, monthly, seasonal, and periodic maintenance schedules.

• Prepare routine inspection checklists and maintenance work orders.

• Assess basic equipment condition and identify maintenance priorities.

• Identify commonly required spare parts and service consumables.

• Monitor system performance after maintenance activities.

• Compare basic operating conditions before and after servicing.

• Identify maintenance actions that can improve energy efficiency.

• Reduce unnecessary energy consumption through proper cleaning, airflow management, and equipment maintenance.

• Maintain accurate service histories and equipment maintenance records.

• Prepare basic maintenance and service reports.

• Document identified faults, corrective actions, and recommendations.

• Coordinate maintenance activities with facilities teams, electricians, refrigeration technicians, and service contractors.

• Apply electrical isolation and lockout/tagout principles.

• Handle refrigerants, oils, cleaning chemicals, and service materials safely.

• Apply appropriate pressure and refrigeration safety practices.

• Follow safe working-at-height procedures where required.

• Use suitable personal protective equipment.

• Apply environmentally responsible refrigerant and waste-management practices.

• Maintain clean, organized, and safe service areas.

• Complete split air-conditioning maintenance activities in accordance with approved procedures, equipment requirements, manufacturer guidance, safety requirements, service schedules, and professional maintenance practices.