Evaporative air conditioners need to be shut down for the winter

Does My Evaporative Cooler Need a Winter Shutdown?

Rooftop evaporative coolers are ideal for adding refreshingly cool air to the home during those scorching summer days.

As evaporative systems (swamp cooler in the US), are used only in warmer weather, all fixed units need to be shut down properly before the winter. Shutting down the system can avoid unnecessary wear and tear and also ensures the wellbeing of your family.

With the air flowing from outside through ducts and vents, it’s essential to seal the aperture at the roof to stop the cold winter air from entering and warm air from escaping.

Also, an improperly drained system can leave a stagnant pool of water, which becomes the perfect breeding ground for algae and bacteria. These tiny organisms can find their way into the vents and ultimately end up in the air of your home by Spring.

Performing a winter shutdown on an evaporative air conditioner can:

  • Improve the heating efficiency of a home
  • Reduce the risk of bacteria and algae build up
  • Maintain the condition of the evaporative cooler
  • Isolate the power and water supplies to avoid faults and increase safety

The shutdown is a service that shouldn’t be skipped if you want to maximise the lifespan of an evaporative cooler and maintain the quality of the air inside your home. March to April is the optimal time to be shutting down the unit – before it’s too cold but not before you are done with the cooling capabilities.

So now the million dollar question is, do I call a professional for a winter shutdown or is it something I can do myself with the touch of a button?

The answer depends entirely on the system in use. Many older models require a manual shut down while some modern systems can take care of the job themselves.

rooftop evaporative cooler

Evaporative Air Conditioner Shutdown – What’s Involved?

If your system is from a leading brand and was installed in recent years, then there’s a good chance that it’s equipped with the functions to take care of its own shutdown.

There are several quality options available in Australia that require little input from the owner. For example, the Kaden Classic series evaporative coolers are impressive units designed with its smart water management and automatic winter seal that’s activated via the accompanying remote.

Alternatively, the Braemar Paradigm series by Seeley International is another prime example. This top of the line series of Australian manufactured evaporative coolers (swamp coolers) automatically empties the water reservoir when the system is not in use. AutoWinterseal technology closes the ducts in the off season.

These features are found in newer models, so if your system dates back to a previous decade, the chances are a winter shutdown will be a manual job – one that can be physically demanding.

Metropolitan Air Conditioning is always open, and is available for the task. Contact us for a winter shutdown service and our technicians will:

  • Inspect the wear and condition of the unit
  • Clean and flush the filter and cooling pads
  • Drain and clean the water reservoir to stop vermin from entering
  • Remove dirt and grime before washing with soapy water
  • Empty and clean the pump basket, filter and distributor channels
  • Isolate water supply line
  • Isolate electrical supply
  • Secure the air conditioner with supplied cover or tarpaulin
  • Close off all air vents throughout the home

ducted air con vent

DIY Air Conditioner Shutdown

If you’re looking to save a quid, you can always shut down the system yourself. Just be mindful of the risks and always follow the appropriate safety precautions. If ever in doubt, contact a professional.

First off, disconnect the power to the unit if it’s safe to do so and shut off the tap that supplies the water. Next, the reservoir should be drained and cleaned with soapy water to eliminate the dirt and grime. Then give the filter pads a good clean.

Also, make sure the vents are closed. Leaving them open can be a real chink in your insulation. Finally, it’s time to deploy the cover. By covering the unit in winter, you protect it from potentially freezing conditions and limit the risk of insects and other pests setting up shop.

If you safely follow these steps, your evaporative air conditioner will be nicely primed and ready for another summer of cooling. Remove the cover and switch the water and power back on when the time is right.

For peace of mind, contact us before the weather drops and we’ll put your evaporative cooler into hibernation, ready to wake up nice and fresh when you need it.


Published: 31 Mar, 2021

Air Conditioning Specialists You Can Trust

Our Promise Going Further

Our specialists pride themselves with honest reliable services

Honest

Our fixed pricing structure guarantees transparency. You will always be quoted the complete costs before work can commence, and our expert technicians will guide you through the process.

Our specialists pride themselves with honest reliable services

Committed

Not all jobs are created equal, but all jobs are equally important. Whether it's a simple repair or ducted air conditioning install, we apply the same high levels of dedication and service no matter the scope of the work.

Professional Expert Technicians

Professional

Home is your castle. Your pride and joy. Our well-spoken technicians will show respect towards you and your property and always clean up after themselves.

Technician Zip Pay Payment Options Image
Technician Zip Pay Payment Options Image

Now Available!

Interest free Air Con with trusted pay later options

What Our Happy Customers Have to Say

Better service starts here

5 stars rating

Our 20-year-old air conditioner finally gave up so we called Metropolitan Air Conditioning. Chris was very professional and knew everything! He organised a new system and got his team working on a Sunday! Very Impressed!

Gabriella - SA
5 stars rating

Brad and Alessandro did a great job on the aircon installation under difficult conditions. The new system is working well and was installed quickly.

Andrew - VIC
5 stars rating

A great service. Very prompt, helpful and attentive. Tyson was very patient to explain everything and worked quickly and efficiently. Thank you so much for your knowledge and caring manner.

Rex - WA
  • Mitsubishi Heavy Industries Air Conditioning Logo

    When looking for a leading supplier of wall mounted split systems, Mitsubishi Heavy Industries air conditioners offer reliable, high-quality heating and cooling perfect for Australian family homes.

  • Temperzone Air Conditioning Logo

    Temperzone is the award-winning global manufacturer of air conditioners and leaders in climate innovation with a wide range of systems suitable for Australian homes and commercial applications.

  • Bonaire Air Conditioning Logo

    Bonaire heating and cooling systems are economical, yet high performance. Their reliable air conditioners are manufactured in Adelaide and expertly designed to withstand year round weather extremes.

  • ActronAir Air Conditioning Logo

    For incredible home comfort, you want ActronAir. Ducted systems or wall hung splits, ActronAir air conditioning has the best residential cooling solutions. You'll never complain about the heat again.

  • Braemar Air Conditioning Logo

    Braemar has all your heating and cooling needs sorted. Evaporative cooling, ducted gas heating, space heaters, wall heaters, split systems and reverse cycle - Braemar has you covered year-round.

  • Breezair Air Conditioning Logo

    Are you after a market leader in evaporative cooling? You need Breezair. Breezair evaporative coolers are manufactured in Australia so you know you're getting cooling to stand the Aussie heat.

  • Celair Air Conditioning Logo

    Celair is a leader in ducted evaporative air conditioning with over 40 years of experience behind them. Manufactured right here in Australia, Celair heating and cooling supports local Australians too.

  • Coolair Air Conditioning Logo

    As an Australian owned and operated manufacturer, Coolair evaporative air conditioning makes a great high performance companion for anyone looking to escape the harsh heat of our great southern land.

  • Fujitsu Air Conditioning Logo

    Stay comfortable all summer long thanks to Fujitsu air conditioning. Fujitsu ducted air conditioning units are perfect for Aussie homes so when you need repairs or servicing, call Metropolitan.

  • Hitachi Air Conditioning Logo

    Are you ready to discover the incredible range of Hitachi air conditioners? We’re talking split systems, wall mounted, ducted heating and cooling and more. So plenty of options for achieving comfort.

  • Haier Air Conditioning Logo

    With over 30 years in the industry, Haier is known internationally for its energy efficient and smart heating and cooling solutions. Haier heating and cooling is just a tap away.

  • Kelvinator Air Air Conditioning Logo

    Australians have enjoyed Kelvinator's cooling reliability for over 80 years. Whether you have a Kelvinator window air conditioner or Kelvinator split system, Metropolitan is here to help 24/7.

  • Lennox Air Conditioning Logo

    Lennox is a globally recognised brand with a great range of energy-efficient HVAC systems. Choose a Lennox air conditioner when craving that desirable climate control and year-round comfort.

  • LG Air Conditioning Logo

    LG is a world leader in consumer electronics, and its air conditioners are no different. From smart split systems to energy efficient ducted air conditioning, LG air conditioning does it all.

  • Midea Air Conditioning Logo

    Midea is an Australian giant with an international reputation for quality split system air conditioning. You can also find portable coolers and window boxes among the Midea air conditioner range.

  • Mitsubishi Electric Air Conditioning Logo

    Mitsubishi Electric supplies premium residential air conditioners in Australia. Their sophisticated designs, including their sleek wall split system models, are built to offer long-term comfort.

  • Panasonic Air Conditioning Logo

    The latest and greatest Panasonic air conditioners go beyond heating and cooling with air purifying features for healthier breathing. Sounds good, doesn’t it?

  • Rinnai Air Conditioning Logo

    Rinnai is a trusted household name in all things heating and cooling. From the Rinnai gas heater to inverter splits and reverse cycle ducted systems, there's a Rinnai solution for every Aussie house.

  • Samsung Air Conditioning Logo

    Samsung Air Conditioning is known for its reliability and performance. These efficient climate systems are as highly regarded as Samsung’s TVs, home appliances and popular Galaxy smartphones.

  • Brivis Air Conditioning Logo

    Brivis by Rinnai has been a titan in the air conditioning game for 50 years. With an impressive heating and cooling system range, the Brivis name goes hand in hand with quality and longevity.

  • Carrier Air Conditioning Logo

    The Carrier air conditioning range is known for sustainability and affordable prices. As a leading Australian AC supplier, Carrier strives to improve the industry through innovative cooling solutions.

  • Kaden Air Conditioning Logo

    Simple solutions are the foundations of Kaden heating and cooling. Products like the Kaden split system are perfect for the ever changing Australian climate so you can always remain content at home.

  • NEC Air Air Conditioning Logo

    Beat the heat with a NEC split system. NEC has a heating and cooling solution that will keep you comfortable in all seasons. Experience superior energy efficient heating and cooling with NEC.

  • Sanyo Air Conditioning Logo

    Sanyo air conditioning models were known for providing trusted AC performance. Although Sanyo no longer operates, Metropolitan can still offer expert 24/7 service to your existing Sanyo system.

  • Sharp Air Air Conditioning Logo

    With over 100 years in the industry, Japan’s Sharp Air Conditioning is known for luxury products. Sharp air cons provide convenient and effective cooling performance, to deliver year round comfort.

  • Stadt Air Conditioning Logo

    STADT air conditioning is synonymous with high quality Australian owned ducted heating and cooling. For any STADT air conditioning service and repair, we are your Australian experts.

  • Vulcan Air Conditioning Logo

    When you're after a Vulcan air conditioning service, you want Metropolitan. We're experts in Vulcan climate control, providing repairs and servicing for air conditioners.

  • York Air Air Conditioning Logo

    For optimal year-round comfort from your AC unit, York is the name to know. Distributed by Bonaire, York air conditioners Australia offer superior AC solutions perfect for our Australian climate.

  • Toshiba Air Conditioning Logo

    Toshiba air conditioning makes use of innovative DC Hybrid Inverter technology which automatically provides high capacity heating and cooling when necessary and minimises running costs when it’s not.

  • TECO Air Conditioning Logo

    TECO has been heating and cooling Australian homes for over 30 years. With split systems, multi splits, window/wall air conditioners and ducted air conditioning, TECO has the whole home covered.

Metropolitan Air Conditioning Service Reviews Metropolitan Air Conditioning Service Reviews