As August ends and the days start getting shorter, it's the right time to prepare your air conditioning system for the shift to autumn. This transition is often overlooked, but it's critical for efficiency, cleanliness, and the long-term reliability of your unit.
Why maintenance after summer matters
Over summer, the air conditioner runs hard: hours of daily operation, filters loading up with dust, constant moisture in the indoor units. Without proper maintenance, all of that chips away at efficiency. Getting the system ready for the seasonal pause means you'll have clean, safe equipment that starts reliably, whether you want to use heating mode this autumn or simply reactivate the unit next summer.
Deep-cleaning filters and units
Start with the filters. Even if you cleaned them regularly during summer, a thorough end-of-season clean is worth doing, ideally with products designed for indoor unit sanitisation. A dirty filter reduces air quality and forces the compressor to work harder, raising consumption and shortening its lifespan.
Clean the grilles and ventilation outlets too. These collect dust and mould, especially in humid rooms. If you can access the outdoor unit, remove any leaves, dust, or debris to maintain proper airflow.
For this kind of deep clean, professional products like those from Zep, available at Clima Convenienza, are reliable and safe to use on indoor units.
Checking refrigerant and performance
Even with no obvious symptoms, it's worth checking that the system is still running at full efficiency. A slight dip in performance can be an early sign of a refrigerant leak or excessive internal fouling.
Preventive maintenance from a qualified technician can cover:
- Refrigerant pressure check.
- Thermal exchange verification between indoor and outdoor units.
- Testing the heating mode (if available).
- Professional sanitisation with antibacterial and antifungal nebulisers.
Switch it off or leave it on standby ?
If you won't use the air conditioner for several months, switch it off completely and unplug it to eliminate standby draw. That said, if your model includes a heating function, test it now during the transition months. It's much better to discover a problem in September than in the middle of a cold snap in November.
Protecting the outdoor unit
If the outdoor unit is exposed to bad weather or falling leaves, cover it with a breathable cover. These prevent dirt from building up without blocking the airflow the unit still needs.
Preparing your air conditioner for the season change is a small effort with a big return. It improves system performance, extends equipment life, reduces future maintenance costs, and keeps the air in your home clean and comfortable for everyone.