As WA locals, we know the secret about Perth winters.
While the rest of the country thinks we live in endless summer, a July morning here brings a damp, bone-chilling cold that cuts straight through you.
Because heating and cooling account for roughly 40% of the average Australian household energy bill, finding that balance between staying cosy and avoiding a massive Synergy bill is crucial.
The good news is that modern reverse-cycle air conditioning is actually the most energy-efficient electric heating available.
But getting the most out of your system requires more than just pressing the ON button.
After years in the field diagnosing and servicing systems across Perth, our expert technicians have put together the real, practical tips we share with our customers every winter to maximise heat and minimise costs.
How We Keep Our Winter Heating Costs Low
Small tweaks can make a massive difference to your system’s efficiency.
Here is what we recommend doing right now.
Find Your Perfect Temperature Setting
Standard industry advice is to set your heating between 20°C and 21°C.
It’s tempting to crank the thermostat to 26°C when you’re freezing, but doing so won’t heat the room any faster. It just forces the unit to work harder for longer.
Every single degree you increase the target temperature adds roughly 10% to your running costs.
Pro Tip
Every person is different. You don’t necessarily need the house to feel tropical.
Often, setting the unit to 18°C is enough to take that biting cold edge off the room while keeping your power consumption low.
Window Tinting and Sun Management
Windows are the absolute biggest source of heat loss in a standard Perth home.
While managing your curtains is important (open during the day for solar gain, closed at night to trap heat), you can even go a step further for a better long-term solution.
We’ve recently been working with a customer looking to optimise their home’s thermal efficiency.
We discussed window treatments, specifically reflective tinting.
Reflective tint significantly reduces the amount of heat that escapes through the glass in winter, while also stopping the rooms facing the sun from acting like a greenhouse in summer.
Different styles of tinting are available, and they are one of the best passive upgrades you can make to support your AC.
It’s About Outlets, Not Just Zones
If you have ducted air conditioning, you probably use your zoning to close off unused rooms.
But here is an insider tip: it’s the number of outlets you turn off that matters, not just the number of zones.
For example, turning off a small guest bedroom zone (which only has one outlet) won’t save you nearly as much energy as turning off the open-plan living zone (which might have four or five outlets).
Be mindful of how much airflow you are actually shutting down when managing your zones.
Harness the Timer Function
Don’t wake up freezing and instantly force your system to run at 100% capacity.
Use your timer. Set the system to switch on to a moderate temperature about an hour before your alarm goes off.
Raising a home’s temperature slowly and steadily is much more energy-efficient than demanding a rapid heat-up.
Check Your Remote Mode
We get dozens of callouts every winter for systems that aren’t blowing hot air, only to find the remote is on the wrong setting!
Ensure your remote displays the Sun symbol (Heating) or says Heat.
Avoid the Snowflake (Cooling) or Arrow (Automatic) symbol. Auto mode can cause the system to fight itself, wasting energy as the temperature fluctuates.
Clean Your Filters Regularly
Airflow is the lifeblood of an efficient system.
Perth summers are notoriously dusty, meaning your system likely accumulated a heavy load of debris and pet dander over the warmer months.
A choked filter forces the blower motor to work twice as hard, driving up your electricity bill.
If you have a standard washable mesh filter, simply pull it out, hose it down, let it dry, and pop it back in.
Clear the Outdoor Unit
Your outdoor condenser needs to breathe to extract heat efficiently.
Perth gardens grow rapidly, so check that overgrown bushes, autumn leaves or stored items aren’t choking the unit.
Restricted airflow stresses the compressor and can lead to costly winter breakdowns.
Direct Your Louvres Downward
Heat rises. It’s basic physics.
If your louvres are pointing straight out or upwards, all that warm air will pool at the ceiling where you can’t feel it.
Adjust the vanes on your wall split or ducted outlets to aim downwards in winter, forcing the heat into your actual living space.
Protect Your Family: Air Conditioning & Cold and Flu Season
Winter doesn’t just bring lower temperatures. It also brings the annual cold and flu season.
Since your reverse cycle system actively cycles the air you breathe indoors, it can be used as a powerful tool to keep your family healthier.
When upgrading your system or booking your pre-winter maintenance, ask our team about harnessing the proactive protection of Panasonic nanoe™ X technology.
The Power of nanoe™ X Technology
Instead of just filtering the air that passes through the unit, Panasonic nanoe™ X actively fills your living space with microscopic, atomised water particles.
These particles contain millions of hydroxyl radicals (OH radicals), which are nature’s natural air purifiers.
Here is how this advanced technology works to protect your home during the peak of cold and flu season.
Actively Inhibits Viruses & Bacteria
The hydroxyl radicals reach out into every corner of your room, wrapping themselves around airborne and surface-bound germs.
They safely strip hydrogen from the virus or bacteria, neutralising it and halting its ability to replicate or spread.
Continuous, Year-Round Protection
Unlike temporary treatments, nanoe™ X operates independently of your heating or cooling settings.
You can run the purification mode alone with minimal power consumption, keeping your indoor air continuously clean 24/7.
Total Room Coverage
Because the nanoe™ X particles are wrapped in water, they have a longer lifespan than standard air ions.
This allows them to travel deep into your fabrics, carpets, and curtains, neutralising hidden pathogens that traditional filters miss.
100% Maintenance-Free
There are no specialised gel blocks to replace every few months or expensive UV bulbs to swap out.
The nanoe™ X generator is a built-in titanium system that requires zero ongoing maintenance or replacement costs.
Did you know
Hydroxyl radicals are completely natural, chemical-free, and safe for continuous exposure around pets, children, and asthma sufferers.
Winter Air Conditioning Behaviour: What is Normal? (The Defrost Cycle)
Every winter, especially when the temperature drops near freezing in the Perth hills or inland areas like Joondalup and Midland, our phones ring off the hook with customers reporting their outdoor unit is smoking or has stopped working.
Usually, the system is perfectly fine. It has just entered Intelligent Defrost (De-Ice) Mode.
When extracting heat from near-freezing outdoor air, moisture can freeze onto the outdoor unit’s coils, literally turning the unit white with ice.
If ignored, this thin layer of ice blocks airflow and kills efficiency. To protect itself, the system temporarily reverses its cycle to melt the ice.
During a Defrost Cycle, you will notice
- The indoor fan stops: The unit pauses heating so it doesn’t blow a freezing draft into your home.
- A loud whoosh: You might hear a sudden gas-flow sound. This is normal; it’s just the reversing valve shifting.
- Smoke outside: This is actually harmless steam rising off the outdoor unit as the ice rapidly melts.
- Water runoff: The melting ice creates a lot of water.
Important
Never turn the unit off during a defrost cycle!
Let it finish naturally (it usually only takes a few minutes), and it will automatically return to heating your home.
Quick Troubleshooting: The Hard System Reset
If your air conditioner stops running altogether or displays an error code on the wall controller, don’t immediately call for a technician.
Try a Hard System Reset first.
Modern air conditioners are essentially large computers, and like any computer, a reboot often clears minor electrical glitches.
Locate the Isolator Switch
Find your air conditioner’s isolation switch. This is usually a heavy-duty switch located outside directly next to the condenser unit, or a specific circuit breaker inside your main electrical meter box.
Kill the Power
Flick the switch to the completely OFF position to cut all electrical supply to the system.
Wait 60 Seconds
Leave the power off for a full, uninterrupted 60 seconds. This allows the internal capacitors to drain and the microprocessors to fully reset.
Restore Power and Test
Turn the power back ON and try to operate the system from your remote or wall controller.
If the unit fails to restart or the fault code returns after completing this sequence, turn the system off to prevent damage and contact our service team immediately.
Need Expert Assistance with Your Heating?
Just like a car, your air conditioning system requires regular professional servicing to run reliably.
Whether you need to book an annual preventative winter service, fix an urgent fault, or discuss integrating Panasonic Nanoe-X technology into your home, our local WA team is here to help.