How to Service Your Air Conditioner: A Complete Sydney Guide

Regular air conditioner servicing is essential to maintain efficiency, air quality, and lifespan — especially with Sydney's humid summers. Here's what you need to do (and when).

Why Regular Servicing Matters

• A dirty filter can reduce efficiency by up to 15%
• Mould buildup in ducting causes respiratory issues
• Unserviced units can freeze up or leak refrigerant
• Regular service extends unit life from 8 years to 15+ years

What You Can Do Yourself (Every 2–3 Months)

1. Clean the Air Filter

Most split systems have a removable filter behind the front panel. Slide it out, rinse with warm water, let it dry completely, and reinstall. This alone can cut running costs significantly.

2. Wipe Down the Vents

Use a damp cloth to clean the indoor unit's louvres and air vents. Dust buildup restricts airflow.

3. Clear the Area Around the Outdoor Unit

Remove any leaves, debris, or vegetation within 30cm of the outdoor compressor. Restricted airflow causes the unit to work harder.

What a Professional Service Covers (Annually)

• Deep clean of the indoor coil and fan barrel
• Check refrigerant levels
• Test electrical connections and capacitors
• Check drain pan and condensate line
• Test all modes and auto functions
• Sanitise and deodorise the unit

Signs Your AC Needs Servicing Now

• Musty or sour smell when running
• Reduced airflow despite low setting
• Ice forming on the indoor or outdoor unit
• Higher electricity bills without change in usage
• Water dripping from the indoor unit

Book a Service or Replace?

If your unit is over 10 years old and needs frequent repairs, replacement may be more cost-effective. We can assess your unit and give honest advice. Call (02) 9757 4888.