7 Common AC Installation Mistakes & Ways to Avoid Them

7 Common AC Installation Mistakes & Ways to Avoid Them

If you have made up your mind that you will invest in a new air conditioner, then confirm whether your older model genuinely requires replacement or not. If yes, and you are contemplating installing it in the DIY (Do It Yourself) method, then you must be extremely cautious as AC installation mistakes are quite a common phenomenon due to which you may have to pay a hefty penalty later on.  

It has been observed that many people seek an immediate AC repair in California within a month of its installation. The reason being the flawed method adopted during the process. In this particular article, we have identified the 7 commonest AC installation mistakes that are often made and the procedures of avoiding them. 

1. Choosing the Wrong Sized AC 

One of the commonest errors that people make during the installation of an air conditioner at home is choosing an air conditioner, which is inappropriately sized. If you select the wrong size, then it is bound to backfire, damaging the equipment and leading to energy efficiency issues. 

Hope you don’t want any AC repair services so early! The installation of an AC unit that is too large for your indoors will cause short cycling. On the contrary, if you install an AC that is too small for your indoors, then it needs to overwork. In both instances, the air conditioner has to endure unnecessary wear and tear, leading to a premature dysfunction. You must select the size perfect for the area indoors. 

2. Planning a Substandard Drainage System 

During an air conditioner’s operation, it creates quite a considerable amount of moisture. If this moisture isn’t filtered away properly, then it may inflict damage on everything in its proximity. This includes your house, causing damaged drywall, backed-up pipes, mold growth, and musty smells. 

However, implementing a poor drainage system is one of the commonest air conditioner mistakes committed. A lot of households suffer due to such water damage. 

A professional, who is experienced in air conditioning service can install the drainage system for you effectively, ensuring that everything is in the right place for the near future. 

3. Placing the Thermostat in the Wrong Area 

The placement of your thermostat affects the functionality of your HVAC system. Improperly installing the thermostat is one of the commonest mistakes made. Consequently, many ACs end up working harder than they would otherwise. In such a scenario AC repair in Riverside is needed. 

You must install your thermostat in a spot far away from air vents and in a location where the sun hardly shines. The more controlled you can maintain its temperature, the more precise it will be, and properly your AC will operate. 

4. Improper Sealing of the Ductwork 

Many people often seal the ductwork improperly. This can greatly impact the efficiency of your AC, allowing forced air to seep out of the cracks in the ducts as it passes through them. 

There shouldn’t at all be any cracks within your ductwork. Cracks if any, must be sealed with a permanent sealer and not tape, which is just a temporary solution. Technicians, proficient in air conditioning repair can fix this easily. 

Confirm whether your ducts are adequately secured. 

5. Placing the Condenser in the Wrong Area 

The condenser of the AC has significance in its total operation. The less work it performs, the more efficiently your AC will function. This will let not just optimal energy savings but for optimal AC lifespan too. 

Maintain one to reduce strain on your AC condenser. However, apart from maintenance, you need to place the condenser in a suitable area. While installing your condenser, ensure it gets adequate shade. 

6. Adding Excessive Refrigerant 

You have to add a bit of refrigerant, but if you add too much, then your system will malfunction. 

While including refrigerant, you must follow the guidelines properly. Adding excessive refrigerant can jeopardize the entire air conditioning system, pocket-pinching you in the process. 

 Professionals are well-versed in these processes and will make sure that your system is set up optimally. 

7. The Condenser Not Getting Enough Clearance 

To run an AC optimally, its condenser must have at least 2 feet of clearance on each of its sides. If it doesn’t, it has to struggle for air intake air and will work much harder than it would otherwise. This will lead to increased energy usage apart from undue wear and tear. 

While installing your AC condenser, check the things that surround it. If you hope to utilize that area for the storage of other items, you must switch its location. 


Hope you don’t want an air conditioning replacement within a couple of years of its installation! The mistakes regarding an air conditioner’s installation may cost you a lot. If you wish to avoid them at all costs, then religiously adhere to the above-mentioned steps.

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