Category: Home Services

Why Is My Aircon Not Cold?

You turned on the air conditioner and waited. You expected the house to start cooling off, but instead, you are still sweating. Why is the aircon not getting cold?

There are several reasons your air conditioner may not be getting cold. Let’s take a look at the most common causes and what you can do about them.

Cleanliness Is Next To Coldness – Dirt could be the answer to your air conditioner not working. If it is still cooling the air a little, this is the place to start.

Check the cooling fins and coils on both the front and back side of your air conditioner unit. If they are packed with dirt, your air conditioner cannot function effectively. This is something you can correct yourself, or call a technician to fix.

First, unplug the power from the air conditioner. Remove the covers so you can access the cooling coils and fins. You will notice the air conditioner has cold coils on the internal side and hot coils on the outside. You must clean both sets of coils to restore efficiency. You can use water to clean the fins and coils, but use caution not to get sensitive electronics wet. Also, do not use high pressure, since it can bend the soft radiator fins. You can use a soft brush to loosen stubborn dirt, but make sure not to bend the fins.

Allow the air conditioner to dry before restoring power and trying it. You will quickly know if this fixes the issue or not. If you notice the air is significantly cooler, you have solved the problem.

No Pressure Compressor Woes – If cleaning did not get the cold air flowing, you will probably need the help of an air condition specialist. The problem is probably in the compressor or lack of coolant. The technician can quickly check the compressor to see if it is running properly. If not, it will require the replacement of the compressor, one of the most expensive parts on your air conditioner. If the compressor has failed, you should compare the price of repair and replacement carefully.

The technician may discover the compressor is fine, but the system developed a small leak allowing the coolant to escape. It only takes a pin-size hole for the hot gas coolant to disappear. He will put the system under pressure to locate the leak and then repair it. After fixing the leak, the technician must recharge the system’s coolant. This type of repair is usually cost effective and will save you money over replacement.

Other Problems – While dirt, failing compressors, and coolant leaks are the most common causes of why the aircon is not cold, they are not the only causes. The thermostat may have failed and is no longer signaling the air conditioner to kick on the compressor. It will still allow the fans to run, depending on the system, but will leave the air warm.

The compressor is triggered by a small relay, which can fail, too. The technician will immediately notice if the compressor is not being signaled to start and can check these electrical systems. They are usually inexpensive repairs, but best left to a technician to diagnose and fix.

Always start by cleaning your air conditioner, but when that fails, you should call a technician to check the other options we just discussed.

Do You Know How Your Home Air Conditioner Affects The Environment?

Do you know how your home air conditioner affects the environment? Hopefully, in regards to the environment within your home, the effects are cool air leading to less humidity and lower temperatures in your home. In many parts of the country, this is essential for staying comfortable in the summer months, and in many states, it’s simply a necessity in order to stay healthy.

Unfortunately, most air conditioners also have an impact on the larger environment of the entire planet, and it’s not always a good one. In fact, there are three primary ways in which residential air conditioners have a negative influence on the world.

Greenhouse gases are the first and foremost way that AC units hurt the Earth. The coolants and refrigerants that many air conditioning units rely on to chill your air, or at least lower the temperature of it some, are chemical compounds that may leak out over time. They are so light that they head up into the atmosphere. Older ones were known as far back as the 1970s to destroy the ozone layer that shields the surface of the Earth from ultraviolet rays. The Montreal Protocol was an international agreement to phase out R22, commonly known as freon, which not only ate up ozone, but was itself a greenhouse gas that kept the sun’s energy in and thus warmed the planet, and it was dangerous to human health at a local level.

Replacement gases have been put into new systems for years, and older systems have been retrofitted with them too. However, while the new gases are less dangerous, many are still greenhouse gases that contribute to the planet heating up.

Local thermal pollution is another problem many air conditioners contribute to. Urban areas with high population density have many air conditioners running at once, both generating their own mechanical heat but also expelling the warmth from a home’s air into the local atmosphere. This makes cities much warmer places than the countryside around them, and the rise of hot air later in the day can create severe weather like pop-up storms.

Raw energy use is the third and final way in which air conditioners affect the environment. They simply need electricity to run and depending on the source of the electricity, there might be even more pollution involved in producing that power. Natural gas, petroleum, and coal-based power sources all contribute to global warming, not to mention contaminated soil and waterways. Even nuclear power can present problems through thermal pollution into the air and local waterways, although perhaps not as generally detrimental as fossil fuels are.

Fortunately, there are many things you can do about all of this. For starters, raise your thermostat to the maximum possible temperature everyone is safe and comfortable at. Second, run ceiling fans and draw curtains closed to help cool off rooms people are in. Make sure your vents, ducts, and actual AC unit are clear so that it’s not having to run harder than it has to, and that includes trimming back shrubs or plants around it. If at all possible, get your utility connections or power from renewable sources, and maybe even consider putting in solar panels on your roof. See if geothermal, wind, or hydroelectric power could be possibilities where you live.

Above all else, keep your system maintained to prevent inefficiencies and gas leaks. Upgrade or replace to newer energy-efficient technology as need be.

Now that you have read this article, you know what impacts your home air conditioner has on the world’s environment. However, you also know what you can do about it! Use every idea you can, because not only will they save the planet but also save you money!