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Common Aircon Installation Mistakes to Avoid

Installing an aircon seems simple, but common mistakes can lead to big problems. For instance, picking the wrong size for your AC unit can make it turn on and off too much. This short cycling isn’t good because it lowers energy efficiency.

To get the right size, you should use a BTU calculator. Where you put your aircon matters a lot, too. Keep thermostats away from windows and doors so they don’t get tricked by outside temps.

The space around your outdoor AC unit is important as well – keep at least 5 feet clear from things like plants or decorations. Don’t forget about the little details like insulation and checking for leaks in refrigerant lines – these save energy and money! If you lose just 10% of refrigerant, electricity costs could jump up by 20%.

Also think carefully about where vents go so that furniture doesn’t block them.

Professionals know best when installing an air conditioner to ensure everything runs perfectly without hiccups. They avoid errors that may be tricky for others to spot.

Settling into comfort with a well-installed aircon starts with avoiding these slip-ups. Let’s find out how to do this right!

Common Mistakes in Aircon Installation

When installing an aircon, certain missteps can greatly affect its performance and efficiency. These common errors range from size miscalculations to improper placement, which can lead to increased energy bills and inadequate cooling.

Choosing the Wrong Size of the AC Unit

Getting the right size for your air conditioning unit is crucial. If it’s too big, it might cool the room quickly but will not remove enough humidity, leaving you feeling clammy and uncomfortable.

An oversized AC also turns on and off more often, using up more energy and wearing out parts sooner. This problem is known as short cycling.

On the other hand, an undersized unit won’t be able to cool your space effectively on hot days. It will run continuously trying to reach the desired temperature without success, increasing your energy bills unnecessarily.

To avoid these problems, use a BTU calculator to figure out the perfect size before your ac installation. Make sure you know your room’s square footage for accurate calculations.

Next up is making sure you place both your AC unit and thermostat correctly so they can do their best work.

Incorrect Placement of the AC Unit and Thermostat

Just as the size of your AC unit is crucial, so is where you put it. Place your air conditioner in a shady spot. It will work better out of direct sunlight. Make sure there’s enough room around it for air to flow freely.

The thermostat also needs careful placement. Keep it away from doors, windows, and places where the sun shines directly on it. This stops false readings and makes sure your home stays at the right temperature.

Wrong thermostat spots can lead to more energy use and comfort issues in your house.

Always think about these details for efficient heating and cooling. Right placements help avoid common mistakes with aircon systems.

Failing to Check for Refrigerant Leaks

Refrigerant leaks in an air conditioning system are a big deal. They can make the AC run less efficiently. This means it will use more power to cool your home, raising your electricity bill.

A leak can also hurt the environment by releasing chemicals into the air.

Always check for refrigerant leaks after installing a new air conditioner. If you miss a leak, you could end up paying 20% more on your energy bills because of lost refrigerant. Plus, fixing these leaks helps prevent damage to other parts of the HVAC system and keeps it working well for longer.

Poorly Installed Drainage System

A drainage system for air conditioners keeps water from building up. If not installed correctly, it can cause big problems. Water could leak and damage your ceilings or walls. This damage is expensive to fix.

Mold can also grow if the drainage system fails. Mold harms your health and ruins the quality of indoor air. Make sure drain pipes slope away from your home. Check that the water flows freely through the drainage system.

This will stop mold and protect your house from water harm.

The Importance of Choosing the Right Location for Aircon Units

Putting your aircon unit in the right spot makes a big difference. If you place it where there’s lots of sun or heat, the AC has to work harder and uses more power. That can lead to higher bills and wear out your system faster.

Keep the outside part called the condenser in a shady, open area so it stays cool and works well.

Inside your home, avoid putting air conditioners near lamps or TVs. These gadgets give off heat, making the AC think it’s hotter than it is. This confuses your system and can mess with temperature controls.

For good air flow, make sure nothing blocks the vents either. Proper placement keeps each room comfortable and saves on energy costs too!

Importance of Professional AC Installation Services

Choosing the right location for your aircon is crucial, but so is having it installed by experts. Professional AC installation services ensure that your unit operates at peak efficiency.

Experts know how to handle British thermal units (BTU), making sure your cooling capacity matches your space. They also avoid common ac installation mistakes like poor vent placement or thermostat positioning.

Professionals don’t just install; they inspect every part of the system. They check for refrigerant leaks and make sure the insulation is spot on. This keeps energy consumption low and prevents water damage from poorly installed drainage systems.

With professional help, you can dodge mold growth and enjoy consistent comfort in your home. Trusting a trained technician means protecting both performance and pocketbook over time.


Make sure your air conditioner is the right size and well-placed. This will help keep your home cool without wasting energy. Always insulate refrigerant lines correctly to avoid problems.

Remember, getting a pro to install your AC can save you trouble and money in the long run. Avoid these common mistakes for a cool, comfortable home all summer.

Discover the optimal placement for your new air conditioning in our detailed guide, Choosing the Right Location for Aircon Units.


1. What should I consider when placing my AC condenser?

Keep your AC condenser in a spot with good air flow and away from any heat sources or blockages. Make sure it’s on a flat, stable surface.

2. Why is refrigerant line insulation important in air conditioning installation?

Insulating the refrigerant lines prevents energy loss, keeps the system running efficiently, and leads to energy savings. Without it, your system might not cool properly.

3. How do I choose the right place for my thermostat?

Place your thermostat away from drafts, direct sunlight, doorways, windows, and room corners for accurate temperature control of your heating and air conditioning systems.

4. Are there benefits to getting professional installation for my central air-conditioning system?

Yes! Professionals know how to avoid common mistakes like wrong British Thermal Unit (BTU) size selection and ensure safe furnace or heat exchanger setup.

5. Is it important which way my vents face during an aircon install?

Absolutely! Make sure vents point towards living areas instead of walls or furniture so you can feel your central air-conditioning unit’s full effect throughout the space.

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