What Happens During a Standard Aircon Servicing?

Regular aircon servicing is essential for keeping your air conditioning system running efficiently in Singapore's hot and humid climate. But what exactly do technicians do during a standard service? Here's a step-by-step breakdown.

Step 1: Initial Inspection

The technician begins by checking the overall condition of your aircon unit. This includes:

• Examining the indoor and outdoor units for visible damage
• Checking for error codes on the display panel
• Listening for unusual sounds during operation
• Noting any issues reported by the homeowner

Step 2: Switching Off and Preparing the Unit

Before any cleaning begins, the technician will:

• Turn off the aircon and disconnect power for safety
• Lay protective covers on the floor and furniture below the unit
• Remove the front panel and filters

Step 3: Filter Cleaning

The air filters are one of the most important components for air quality:

• Filters are removed from the indoor unit
• Dust and debris are vacuumed or brushed off
• Filters are washed with water and mild detergent
• Filters are left to dry while other work continues

Step 4: Cleaning the Evaporator Coils

The evaporator coils (cooling coils) inside the indoor unit collect dust over time:

• Coils are vacuumed to remove dust, grime, and mold build-up
• Coils are gently brushed if needed to remove stubborn deposits
• This improves cooling efficiency and air quality

Step 5: Cleaning the Drainage Tray and Drain Pipe

A clogged drain can cause water leakage:

• The drainage tray beneath the coils is cleaned
• Algae, slime, and debris are removed
• The drain pipe is flushed to ensure proper water flow
• This prevents water leakage and musty odours

Step 6: Cleaning the Fan Blower

The blower fan circulates cool air into your room:

• Dust accumulation on fan blades is cleaned
• This ensures proper airflow and reduces noise
• Clean blower fans also improve energy efficiency

Step 7: Checking the Condenser Unit (Outdoor)

• The outdoor unit also requires attention:
• The condenser coils are inspected for dirt buildup
• Debris around the unit is cleared for proper ventilation
• The technician checks that the fan is operating correctly

Step 8: Checking Refrigerant Levels

• Low refrigerant affects cooling performance:
• The technician checks for signs of refrigerant leaks
• Gas pressure is measured if cooling issues are reported
• Gas top-up is recommended if levels are low (additional service)

Step 9: Reassembly and Testing

Once cleaning is complete:

All components are reassembled

• The unit is powered on and tested
• The technician verifies proper cooling and airflow
• Temperature readings are checked to ensure optimal performance

Step 10: Final Inspection and Recommendations

Before leaving, the technician will:

• Clean up the work area
• Provide feedback on the unit's condition
• Recommend any additional services if needed (chemical wash, gas top-up, etc.)
• Answer any questions you may have

How Often Should You Service Your Aircon?

For most households in Singapore, we recommend:

• Light usage: Once a year
• Regular usage: Twice a year (bi-annual)
• Heavy usage: Three to four times a year

Regular servicing extends the lifespan of your aircon, maintains energy efficiency, and ensures clean, healthy air for your family.