Air Conditioning Do’s & Don’ts

Follow these simple tips to keep your air conditioning system running efficiently and avoid unnecessary damage or faults:

✅ Do’s

• Wait before restarting the systemIf the system has been turned off, wait 2–3 minutes before turning it back on. Restarting too quickly can damage the compressor or blow a fuse.
• Clean your filters regularlyWe recommend cleaning your filters at the start of each heating and cooling season, or every 1–3 monthsdepending on usage.
• Always run at least one zone (for ducted systems)Operating the system with all zones closed can cause airflow restriction and system strain.
• Trim trees and shrubs around the outdoor unitMaintain clear airflow by trimming back vegetation. Blocked airflow reduces efficiency and can overheat the system.
• Set a stable, comfortable temperatureUse consistent set points — ideally 22–24°C for cooling and 20–22°C for heating — to avoid unnecessary cycling and wear.
• Use timers or Wi-Fi controls (if available)Automating your usage saves energy and helps keep your home comfortable when you’re not there.
• Schedule annual servicingA professional service helps maintain performance, extend lifespan, and catch problems before they worsen.
• Monitor your energy usageUnexpectedly high bills may indicate a clogged filter, poor airflow, or a developing system fault.
• Keep the outdoor unit cleanRegularly sweep away leaves, dirt, and cobwebs around the outdoor unit to maintain optimal airflow.
• Leave internal doors open where possiblePromotes even airflow, especially in open-plan or multi-room layouts.

 ❌ Don’ts

• Don’t restart the system too quicklyRestarting without waiting 2–3 minutes can cause electrical or compressor damage.
• Don’t change the thermostat by more than 2°C at onceSudden changes may trigger the system to switch modes (cooling ↔ heating), potentially straining the compressor.
• Don’t block vents or grillesEnsure furniture, curtains, or other objects don’t obstruct air circulation inside your home.
• Don’t cover or enclose the outdoor unitAvoid placing items near or on top of the outdoor unit — restricted airflow can cause overheating.
• Don’t run the system with dirty filtersThis can reduce efficiency, increase power usage, and lead to water leaks or equipment faults.
• Don’t close all internal doorsEspecially with ducted systems, this can cause backpressure and reduced airflow, impacting performance.
• Don’t leave zones open to rooms with doors closedAir can back up into closed-off rooms, reducing overall system efficiency.
• Don’t ignore unusual noises or smellsBuzzing, rattling, burning smells, or other odd behaviours should be checked early by a technician.
• Don’t allow pets near the outdoor unitPet urine can severely corrode the coils and components. Dog’s also often chew through electrical cables!
• Don’t attempt DIY repairs or open panelsAlways leave servicing and repairs to a licensed technician to avoid voiding warranties or risking injury.
• Don’t skip regular maintenanceAnnual servicing is crucial to keeping your system reliable, efficient, and safe.