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Running your air conditioner in the summer is a great way to stay cool and comfortable. However, if you don’t take the necessary steps to maintain your ac unit, it can lead to expensive repairs or even complete failure. This article will discuss five common mistakes people make with their AC that can be avoided by following some simple tips. We’ll cover setting the thermostat too low, not changing the air filter, running the AC all day, skipping annual maintenance checks, and more. By following these guidelines, you can keep your AC running efficiently and extend its lifespan.

Setting the Thermostat Too Low

Setting the thermostat too low is one of the most common mistakes made when attempting to cool a home. While it may seem like a simple task, setting the thermostat too low can have major consequences for your air conditioner and your energy bill.

What Happens When You Set the Thermostat Too Low

When you set the thermostat too low, you are putting an excessive amount of strain on your air conditioner. The unit will be forced to work harder than necessary in order to keep up with the demand of cooling your home. This can lead to higher energy costs and potential damage to the system due to overworking it. Additionally, if you set the temperature too low, it can cause condensation buildup inside of your walls which can create an ideal environment for mold growth.

How to Avoid This Mistake

The best way to avoid this mistake is by setting your thermostat no lower than 78°F (26°C). This temperature is usually enough to keep your home comfortable while not putting too much strain on your air conditioner. Additionally, you should avoid adjusting the temperature frequently as this can cause unnecessary wear and tear on the system. If you want to save energy and money, consider installing a programmable thermostat that will allow you to adjust the temperature automatically throughout the day based on your needs.

Not Changing the Air Filter

The air filter in your air conditioner is an important part of its operation. If it’s not changed regularly, it can cause a variety of problems that can affect the performance and efficiency of your unit. In this section, we’ll discuss what an air filter is, how to change it, and why it’s so important.

What Is an Air Filter and What Does It Do?

An air filter is a replaceable component in your ac unit that collects dust, dirt, pollen, and other airborne particles from the air before they enter the system. The filter helps keep the interior components clean and prevents them from becoming clogged with debris. This helps reduce wear and tear on the system, as well as improve its overall efficiency.

The filters should be replaced regularly in order to maintain optimal performance. Depending on the type of filter you have, it may need to be changed every month or two months. It’s also important to check the filter periodically for any signs of damage or clogging. If the filter looks dirty or has any tears or holes in it, then it should be replaced right away.

How to Change Your Air Filter

Replacing an air filter is a relatively simple process that doesn’t require any special tools or skills. First, you need to locate the air filter in your ac unit – usually near the blower motor or return duct – and remove it from its frame. Then you can discard the old filter and replace it with a new one of the same size and type. Make sure that you securely fasten the new filter into place before turning your AC back on.

It’s also important to note that some filters require special cleaning instructions or cannot be reused at all – so make sure you read all instructions carefully before attempting to clean or replace them yourself. If you are unsure about anything related to changing your air filter, contact a professional HVAC technician for help.

By regularly changing your air filters, you can ensure that your ac unit is running efficiently and effectively while preventing costly repairs down the road due to clogged components or excess strain on your system caused by dirty filters.

Regularly changing air filter s helps keep ac units running efficiently and effectively, prevents costly repairs, and reduces strain on the system.

Running the AC All Day

Why This Is a Problem

Running the air conditioner all day can be an expensive and inefficient way to cool your home. The longer you run your AC, the more energy it will use, and the higher your electricity bills will be. Additionally, running your AC all day puts extra strain on the unit itself, which can lead to costly repairs down the road.

Alternatives to Running the AC All Day

Fortunately, there are several alternatives to running your AC all day that can help you save money and energy. During hot summer days, try keeping windows and curtains closed during peak hours of sunlight to keep heat out of your home. You can also install ceiling fans or set up portable fans in rooms where you spend most of your time. If you’re looking for a more permanent solution, consider investing in a programmable thermostat that allows you to set specific temperatures for different times of day. Finally, make sure to regularly clean or replace air filters so that your AC is running efficiently and effectively.

Skipping Annual Maintenance Checks

Having an annual maintenance check on your air conditioning unit is essential for keeping it running efficiently and avoiding costly repairs. An annual maintenance check can help you identify any potential issues before they become major problems and can help you save money in the long run.

Benefits of an Annual Maintenance Check

An annual maintenance check helps to ensure that your air conditioning unit is running at its peak performance. During the check, a professional technician will inspect the unit, clean any parts that need to be cleaned, and make any necessary repairs or adjustments. This can help to extend the life of your unit and prevent costly repairs down the line. Additionally, a professional technician can also provide tips on how to keep your air conditioning unit running efficiently in between maintenance checks.

Regular maintenance checks can also help you save money on energy costs. A well-maintained air conditioning unit runs more efficiently than one that has not been regularly maintained, which means it uses less energy and costs less to operate.

Where to Find Professional Help for Your AC Unit

Finding a qualified professional to perform an annual maintenance check on your air conditioning unit is easy. You can start by asking friends and family for recommendations or search online for local technicians who specialize in air conditioning repair and maintenance. Make sure you read reviews and get quotes from multiple companies before making your decision.

Once you have found a qualified technician, schedule an appointment for them to come out and perform a thorough inspection of your unit. Be sure to ask questions about their experience level and what services they offer so that you know exactly what you’re getting when they come out for the appointment. Most technicians will also provide advice on how to maintain your air conditioner in between visits as well as answer any other questions you may have about your unit.

By scheduling regular maintenance checks for your air conditioning system, you can ensure that it runs efficiently and avoid costly repairs down the line. Finding a qualified technician is easy, so don’t hesitate to reach out if you need help with maintaining or repairing your AC system.


Making sure your air conditioner is running efficiently and properly is essential for a comfortable home. Setting the thermostat too low, not changing the air filter, running the AC all day, and skipping annual maintenance checks can all lead to costly problems with your ac unit. To avoid these issues, you should set the thermostat to an appropriate temperature, change your air filter regularly, use alternative cooling methods when possible, and get an annual maintenance check from a professional. Taking these steps will ensure that your AC continues to run efficiently for years to come.