You’ll find the answers to our most frequently asked questions below. Feel free to contact us here if you’d like further advice.

Split systems or ducted air conditioning: Which one is best for you?


It is difficult when purchasing an air conditioning system and weighing up all the options of either a split system or ducted systems. Each type of system has its advantages and disadvantages. The trick to choosing the right system for you is finding out which one suits your budget and lifestyle the best.

  • A ducted system can cool your entire home via its network of ducts and outlets.
  • The ducts are hidden in the walls and ceilings and only discreet outlets are visible.
  • All you have to do is set the temperature on the control panel and your house is always the perfect temperature.
  • Zones are also available which gives you greater control over which rooms you want to air condition and when. Also now we can control all this via wi-fi control.
  • Ducted air conditioning systems are more expensive to buy and install, but their running costs can be offset this over time. Getting the right system and a qualified design from a qualified air conditioning company can help reduce running costs.



  • A split system is more affordable because you can add split systems as your budget allows.
  • If one unit requires repair, the others continue working and repair costs are lower.
  • Running costs are lower because split systems are used only when and where needed.


Are you renovating or building a new house, replacing an old air-conditioning unit or installing an air conditioning for the first time? It is very important that your new air conditioning unit meets your requirements, budget and blends in with its surroundings.

How frequently do I have to clean my air filters?

Heating and cooling professionals say that even if you do not suspect that your air conditioning unit has problems, you need to have it serviced and inspected at least once every year. This will ensure that it operates at maximum efficiency. It will be ready to cool the house in the months when you require it most.

As the air conditioning unit runs, it tends to accumulate dirt and dust in critical areas such as the air filters and the condensing coils. This can adversely affect its efficiency. The build-up of dirt and dust, if not checked, reduces your machine’s operating efficiency by 5 % or more. This means that your air conditioner cannot cool the house as efficiently as it should when clean.

As a homeowner, the best thing you can do for your air conditioning unit is clean your air filter regularly especially during the warmer months. Ideally, you should clean your filters at least once every 30 days.

Check your air filter and replace it if it looks worn.

How can I minimise my running costs and my carbon footprint on the environment:

It is inevitable when investing in an air condition system that is it super important to consider maintenance, running cost and the minimization of energy use.

  • Having your air conditioner professionally installed & maintained.
  • If the day is hot, turn the air conditioner on before the house gets the hottest part of the day.
  • Set the temperature from 25-27 degrees Celsius in summer. Check this after the air conditioner has been on for 30 minutes.

How does an air conditioning unit work?

Ducted air conditioning uses a system of insulated pipes or ducts in your wall or ceiling cavity to circulate cool air around your home. Vents or grills are installed in the rooms you want air-conditioned, and a programmable control panel allows you to specify the temperature and when your system runs.

A number of factors contribute to the efficiency of a ducted air conditioning system, specifically the energy efficiency of the unit and the thermal efficiency of the ducting. If inferior ducting is used it simply loses precious heat or cool air as it travels around your home.

Should I zone my house? Why?

Zoning your house gives you the ability to turn on and off rooms/areas in your house so that they can independently heat or cool the parts of your house that you need.

Some ducted air conditioners have 8-10 different zones. You can save on cost of heating or cooling unused rooms in your home.  Zones allow individuals to choose whether they want the AC on or off in their particular space.

Don’t however fall into the trap of installing a smaller machine just because your system has zones installed. There’s nothing worse than finding you can’t turn on the kid’s bedrooms until you turn off the living room, simply because your machine is too small to run both.

Which brands of air conditioners do you sell?

Haier, Fujitsu Daikin & Mitsubishi Electric, and all major brands.

What size system do I need for my house?

Today, energy efficiency is the name of the game and modern central air conditioners run in cycles, slowly but steadily lowering the temperature of your house instead of rapidly.

  • If Your AC is Too Big – if you buy an air conditioner that is sized too big for your house, then it will run more like that AC that has been outdated for years and not energy efficient. The air conditioner will turn on quickly, cool your house rapidly and then shut off.  Your house will still be nice and cool but because it is not going through the entire cycle it was designed for the humidity will not be removed and heat will soon infiltrate your house and it will have to click on again.  It will begin cooling your house rapidly and then it will turn off again and again.  This constant on-off cycle will defeat the purpose of its energy efficient design and inability to save on costs.
  • If Your AC is Too Small – if your air conditioner is sized too small, then it will run constantly and spend most of the day trying to catch up to where it should be. Again, your house will still be nice and cool but if the air conditioners are too small then they are made to work extra hard to cool the house rapidly, hence they will run constantly and again run up a huge  electric bill.
  • If Your AC is Sized Just Right – a properly sized air conditioner will run through the required amount of cycles to keep your house comfortable, but will not run so much that it loses its efficiency.

Why is my Air Conditioner not working?

Troubleshooting the common Air Conditioner problems

There’s nothing more frustrating than your having your Air Conditioner not working on a hot day. As with any household appliance or device, you’re bound to run into issues every now and again. There are quite a few different air conditioner problems, some are more common than others.

  1. Air Conditioner leaking problem

Leaks are quite possibly the most common of all Air Conditioner problems. These can be serious issues as they can contribute to water damage, mould growth, and other things. If you find that your Air Conditioner is leaking, you should first check your drain pan and confirm that it’s not rusted through. Next, you need to make sure that there aren’t any blockages within the drain that stop the water from properly reaching the drain pan. If you find the drain is clear, then it’s possible you have a frozen compressor causing the leak. At that point, it’s time to get some professional help. Make sure you engage a Fully qualified Air Conditioning & Refrigeration Mechanic, as there is a huge difference


  1. Air Conditioner freezing up problem

Another thing that could have your Air Conditioner not working is a frozen coil. If any of your coils freeze over, it can definitely interfere with the operation of your Air Conditioner. Fortunately, it’s not that difficult to keep your coils from freezing. Actually, the vast majority of freezing issues can be prevented by simply making sure your filters are cleaned every month as. If this doesn’t solve the issue, then your problem could be a dirty evaporator, or you could just have low refrigerant levels in your Air Conditioner. Contact Bayside  Air who are fully  Qualified Air Conditioner & Refrigeration Mechanics.


  1. Air Conditioner compressor noisy problem

If you notice that your Air Conditioner compressor is noisy when it’s running, you might have a problem with the fan belt.  It might seem like a relatively minor Air Conditioner problem at first, but if left unchecked, it can eventually lead to your fan making very loud noises. It can also cause quite a bit of damage to the belt itself.


  1. Air Conditioner compressor not working

This is a fairly common issue that tends to occur near the beginning of each cooling season. What you need to do first is check whether there is any power going to the outdoor unit. Ensure that the disconnect switch is set to the ‘ON’ position. Once you verify this and there still isn’t any power, check that the breaker is properly working and that the wire for the disconnect switch isn’t burned out. Now, if none of those turn out to be your Air Conditioner problem, you may have a defective contactor, transformer, or thermostat. You can have an professional HVAC technician diagnose the symptoms of your unit and recommend a course of action.


  1. Air Conditioner automatically turn off and on

If your Air Conditioner automatically turn off and on, this could be caused by a number of factors. First, you could simply be running low on Air Conditioner gas/coolant. That would cause your Air Conditioner to a automatically turn off and on more often. It could also be that your Air Conditioner unit is too large. This could mean it only cools in brief spurts, rather than more evenly as it should. Contact Bayside Air to figure out what issue you’re experiencing.


  1. Air Conditioner tripping the breaker

Sometimes you might encounter an issue in which the circuit breaker trips each time your Air Conditioner compressor turns on. This could be an indication of a weak circuit breaker. It could also be that there is a problem with the Air Conditioner itself, either way, it’s something that needs to be fixed sooner rather than later. Contact Bayside Air who are  fully Qualified Air Conditioner & Refrigeration Mechanics


  1. Air Conditioner thermostat problem

You might notice that your thermostat isn’t holding the correct temperature as it should be. This could just be a result of your thermostat’s calibration being defective, contact Bayside Air to give you the best advice on how to fix your problem.


As you can see, there are a variety of Air Conditioner problems that can occur, from freezing coils to defective compressors to Air Conditioner leaks. Remember, the best protection is prevention. Knowing these issues and how they can occur can give you some idea of the things you can do to prevent them from occurring. Keeping your Air Conditioner properly maintained will extend its life and enhance your comfort too.

Contact Bayside Air to organise a quote to replace your old Air Conditioner, to conduct a service or preventative maintenance on your Air Conditioner. Bayside Air are fully Qualified Air Conditioner & Refrigeration Mechanics and can diagnose any problem associated with your Air Conditioner.

Still have questions?

Or need general advice? We’re happy to discuss your individual requirements.