Air Conditioning FAQs

In the interests of getting the most from your air conditioning systems, and educating our customers, Acer Services is proud to present this collection of recent questions we’ve been asked and our subsequent answers. And of course if you can’t find the answer here, it may be in our comprehensive Buyer’s Guide.

If you have any further questions about air conditioning systems, Acer Services would be delighted to answer them.

Simply call us on 3823 3577 or send us an email at [email protected]

What Size Air conditioner do I need for my home?

In our experience, there’s no real “rule of thumb” that can be applied to air conditioning sizing. The unique properties of your home and the placement of your air con needs to be carefully considered.

Essentially, you need to ensure your unit has enough kW to cope with the hottest day of the year.

The very best way to accurately determine what size air con you need is to have a trained technician conduct an inspection of your home and make a recommendation. 

Click here to read our blog post for more info on air conditioning sizing.

Do you offer an extended Installation warranty?

When you purchase and install an air condtioner with Acer Services, you’ll automatically be covered by two separate warranties:

1. Our 12 month installation warranty.

2. The manufacturer’s warranty which is usually for 5 years, depending on the brand.

But for your ultimate piece of mind, we also offer a free extended installation warranty for both domestic and commercial air con units:

  • To receive an extended installation warranty for domestic air con, simply book regular annual services with us and we will MATCH our installation warranty with the manufacturer’s warranty.
  • To receive an extended installation warranty for commercial air con, simply book quarterly services with us and we will MATCH our installation warranty with the manufacturer’s warranty

Click here to learn more about our free extended installation warranty offer

Does Running my air conditioner on dry really save me money?

It depends on the air conditioning system and how hot or humid the room is.

If the temperature isn’t extreme, say 26 degrees, but it is very humid, running the unit in Dry mode at around 23 or 24 degrees would be a wise choice.

Of course, if you’re the sort of person who wants the temp to be 18 degrees or less, running on Dry would be of no benefit at all.

Are all Mitsubishi air conditioners made by the same company? 

No, even though they share the name Mitsubishi and were once sister companies, Mitsubishi Electric broke away from Mitsubishi Heavy Industries in 1921. They are now direct competitors, pushing each other to produce the most innovative air conditioners on the market. 

Why doesn’t my air conditioner start straight away?

This usually only happens in winter when the unit is in heating mode. What happens is the air conditioner first checks the temperature of the refrigerant (Freon) which is often in liquid form when it’s colder. The lower the outside temperature, the longer it takes for the unit to start up.

Why is steam coming out of my air conditioner?

This is normal. It is simply the cool air meeting hot humid air and forming water vapour.

Why is water dripping from the external unit?

Relax. This is simply normal condensation. This water can be channelled to a drain or garden bed, however it is only water after all so there really is nothing to worry about. Like rain water, it will quickly evaporate.

Why is there an unpleasant smell coming from my air con unit?

The usual reason is that due to lack of regular maintenance, mould and mildew has accumulated inside. However, it could also be a deceased Gecko or similar. Call Acer and we will investigate.

Can I cool or heat two rooms with one air conditioner?

Not really, not unless you have a multi-split system sharing one external unit. Perhaps it would partially work if there were a connecting door, but even this is not ideal as hot air will be trapped above the doorway and the airflow will be restricted.

Would you recommend using second hand air conditioners?

Definitely not. In most cases the units are between 5 and 8 years old and may now be obsolete. The filters will be worn and/or dirty and parts will be difficult (ie expensive) to find. For total peace of mind, it is much better to buy new air conditioners and take advantage of manufacturers’ warranties of up to 5 years.

Should the fan speed always be on high?

Only on hot dry days and nights. However when the weather is particularly humid, you should set the fan speed on low for increased comfort. This will help to remove more moisture from the air and actually make your home cooler.

Will putting the air con on a lower setting than normal cool my house faster?

Unfortunately no. Furthermore, if you forget to reset it in time, it may lead to added expense.

How can I make my air consitioner work more efficiently? 

Try the “organic” approach. Do things like add curtains, blinds, etc to windows facing east and west, and if possible, delay heat-generating activities, such as cooking & baking, until the evening on hot days

Can excess dust cause problems for my air conditioner?

Yes. Dust and dirt build-up on the indoor coil is the single most common cause of poor efficiency in air conditioning systems.

Why does my air conditioner get so dusty?

The indoor coil in your air conditioner acts as a magnet for dust because it is constantly wet during the cooling season.

Do you service trade accounts and DIY Installers?

We do. Check out our affilitate website –  Climate HVAC Warehouse – for more information.

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If you have any further questions about air conditioning systems, Acer Services would be delighted to answer them.
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