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Ultimate Air Conditioner Maintenance Checklist for Houston Homeowners

At 75 Degree AC, we understand that a well-maintained air conditioning system is vital to keeping your home comfortable while ensuring your energy bills remain manageable. This comprehensive guide will cover everything from routine maintenance tasks to the benefits of keeping your AC in top shape, ensuring your unit isn’t just functional but efficient. Whether you’re facing issues like low Freon or want to prevent future problems, this guide is for you.

Air Conditioner Maintenance Checklist

Air Conditioner Maintenance Checklist

Regular maintenance ensures your air conditioning system operates efficiently and lasts as long as possible. At 75 Degree AC, we recommend following a comprehensive maintenance checklist to keep your AC in top condition:

Clear Debris from Around Your AC

The area around your outdoor AC unit should be clear of leaves, twigs, dirt, and other debris. These materials can obstruct airflow and reduce the system’s efficiency. Regularly clearing a two-foot perimeter around the unit ensures it can draw in the air it needs to operate effectively.

Inspect and Clean the Outdoor Unit

The outdoor unit of your air conditioner is exposed to the elements and can accumulate dirt and debris that might obstruct the condenser coils. Inspecting and cleaning these coils are essential for maintaining the unit’s efficiency. Use a garden hose to wash away dirt from the coils gently, but be careful not to bend the delicate fins.

Clear the Condensate Drain Line

The condensate drain line can become clogged with algae, dirt, and debris, causing water to back up and leading to humidity problems and water damage inside your home. To clear the line, you can use a stiff wire to gently remove any blockages or pour a mixture of water and vinegar through the line to kill any algae or fungi.

Change the Air Filter

Changing the air filter is one of the simplest yet most effective maintenance tasks. A dirty filter restricts airflow, forcing your system to work harder, increasing energy costs, and reducing equipment life. Check your air filter every 30 to 60 days and replace it when it becomes dirty.

Ensure Your AC is Level

An air conditioner that is not level can cause the compressor and other components to fail prematurely. Check the platform or pad your outdoor unit sits on to ensure it has stayed put. If it’s not level, a professional may need to adjust it.

Visually Inspect Electrical Wiring

Over time, the electrical connections in your AC can become loose, and the insulation on wires can wear away, leading to potential safety hazards and system malfunctions. Visually inspect wires and connections for signs of wear or damage. If you notice any issues, it’s essential to have a professional address these problems immediately.

Test Out Your AC

It’s a good idea to test your air conditioning system before the start of the cooling season to ensure it is operating smoothly. Turn on your AC and monitor how it runs—it should start without any issues and begin cooling your home immediately. Listen for unusual noises and note any distinctive smells. It might be time for a professional inspection if something doesn’t seem right.

Schedule an Annual Tune-Up

The most important item on this maintenance checklist is an annual tune-up by a professional HVAC technician. This appointment includes:

  • Thoroughly inspecting and cleaning your system.
  • Verifying fluid levels (including refrigerant).
  • Checking all electrical components and controls.
  • Testing the thermostat.

Regular tune-ups can identify and fix issues before they lead to more significant problems, ensuring your unit runs efficiently throughout the year.

By adhering to this maintenance checklist, you can help ensure that your AC unit functions at its best, prolonging its lifespan and maintaining efficiency. Remember, when it comes to complex tasks such as checking refrigerant levels or electrical repairs, it is crucial to contact a professional service like 75 Degree AC at (713) 598-2737 or email at [email protected]. Our team is ready to prepare your system for any season, providing peace of mind and comfort.

Seasonal Air Conditioning Maintenance

Seasonal Air Conditioning Maintenance

Seasonal maintenance is critical to ensuring your air conditioning system runs efficiently all year round. Different seasons pose different challenges and requirements for your AC system. At 75 Degree AC, we recommend specific tasks to be performed in spring and fall to prepare for the heavy usage during summer and to ensure proper shutdown during winter.

Spring Maintenance Tasks

Spring is the perfect time to prepare your AC system for the high demands of the upcoming summer. Here are essential maintenance tasks to perform:

  • Inspect and Clean the Coils: Winter debris and dirt can cover your unit’s coils. Cleaning these ensures your AC runs efficiently.
  • Check Refrigerant Levels: Low refrigerant levels can indicate leaks or inefficiency. Ensuring your system has the proper refrigerant before peak usage is essential.
  • Test the Thermostat: Ensure your thermostat works correctly and keeps your home at the desired temperatures. Consider upgrading to a smart thermostat for better energy management.
  • Clean or Replace Filters: This should be done more frequently during high-use seasons. Clean filters improve air quality and system efficiency.
  • Inspect Ductwork for Leaks: Leaky ducts can significantly decrease system efficiency and increase energy bills. Sealing and insulating ducts can improve your system’s performance.

Fall Maintenance Tasks

In the fall, the goal is to ensure your system is clean and secure before the low usage during winter. Key tasks include:

  • Cover the Outdoor Unit: Protect your outdoor unit from winter debris and ice with a breathable, waterproof cover.
  • Clear and Inspect the Drain Line: Ensure the condensate line is clear of any obstructions to prevent indoor flooding and water damage over the winter.
  • Check for Air Leaks: Inspect windows and doors for leaks that can cause drafts and make your heating system work harder during the winter.
  • Check Insulation: Proper insulation helps maintain your home’s temperature, reducing the burden on your heating and cooling system.

Annual Checkups

An annual checkup, ideally conducted in the spring, focuses on a comprehensive inspection and tune-up of your entire system to ensure it is ready for summer. This includes:

  • Checking thermostat settings to ensure your air conditioning system keeps you comfortable when you are home and saves energy while you are away.
  • They tighten all electrical connections and measure voltage and current on motors. Faulty electrical connections can cause unsafe operation of your system and reduce the life of major components.
  • It is lubricating all moving parts. Parts that lack lubrication cause motor friction and increase the amount of electricity you use.
  • You are inspecting the condensate drain in your central air conditioner, furnace, and heat pump (when in cooling mode). A plugged drain can cause water damage in the house and affect indoor humidity levels.

Professional Inspections

Even with regular homeowner maintenance, an AC system can benefit from a professional inspection. HVAC technicians can perform more complex maintenance tasks that require specialized knowledge and tools, such as:

  • I was checking the accuracy of the thermostat.
  • Inspecting electrical components and controls to ensure they operate safely and correctly.
  • I was checking the refrigerant and adjusting it if necessary.
  • I was inspecting the fan motor and blades for wear and damage.

These professional inspections can identify potential issues before they become significant problems, ensuring your system operates at peak efficiency and prolongs its lifespan. At 75 Degree AC, we provide detailed inspections that cover every aspect of your system’s health, offering you peace of mind and saving you money in the long term.

For professional AC maintenance and inspections, contact 75 Degree AC. We are dedicated to ensuring your comfort and satisfaction through expert services. Contact us today at (713) 598-2737 or via email at [email protected] to schedule your seasonal maintenance.

Benefits of Regular Professional Maintenance

Benefits of Regular Professional Maintenance

Ensuring your air conditioning system receives regular professional maintenance is crucial for its operation and longevity. At 75 Degree AC, we emphasize the importance of routine checks and servicing, which provide numerous benefits, from extended lifespan to enhanced energy efficiency. Here are the key advantages of sticking to a regular maintenance schedule:

Extended Lifespan

One of the most significant benefits of regular professional maintenance is the extended lifespan of your AC unit. Air conditioners are complex systems that require fine-tuning to operate efficiently. Without regular maintenance, your system can work harder than it should, leading to premature wear and tear on components. Regular maintenance ensures that every part of your system is in optimal condition, thus reducing the stress on your AC and extending its usable life.

Improved Air Quality

Your air conditioner does more than cool your home; it also plays a critical role in circulating and filtering the air. Over time, dust and allergens can accumulate in the filter and ductwork, which can then be circulated throughout your home, impacting the indoor air quality. During a professional maintenance visit, technicians clean or replace air filters and check ductwork for dust buildup, ensuring that your system continues to provide clean, healthy air to your living spaces.

Enhanced Energy Efficiency

An unmaintained AC unit can suffer from various issues that hinder its efficiency, such as dirty condenser coils or a clogged air filter. These issues make the system work harder and consume more energy. Regular maintenance involves thoroughly cleaning and adjusting these components to ensure your system operates as efficiently. This helps reduce your carbon footprint and lowers your energy bills significantly.

Prevent Breakdowns

Many of the issues that cause air conditioning systems to break down can be prevented with regular maintenance. During maintenance visits, technicians can identify and address minor problems before they become significant. This proactive approach to maintenance means you’re likely to avoid unexpected breakdowns during the peak summer months when you need your AC the most. Regular checkups help prevent the inconvenience and cost of emergency repairs.


Regular maintenance can save money over the lifetime of your AC unit. Regular maintenance reduces the total cost of ownership by extending the lifespan of your system, improving energy efficiency, and preventing costly breakdowns. Furthermore, well-maintained units are less likely to require expensive repairs, which can often be significant when issues are neglected over time.

Regular professional maintenance is an essential aspect of owning an air conditioning system. At 75 Degree AC, we provide top-notch maintenance services that keep your system running smoothly and efficiently. To schedule your next maintenance visit and ensure your AC is in peak condition, contact us at (713) 598-2737 or [email protected]. Let us help you enjoy a comfortable and efficient home environment.

What Happens If AC Is Not Serviced?

Neglecting regular service on your air conditioning system can lead to various issues, some of which can be costly and detrimental to the unit and your home’s comfort. Here’s what can happen if your AC is not serviced regularly:

  • Decreased Efficiency: Dirt and debris can clog the air filters and condense on the condenser coils, causing the system to work harder. This inefficiency results in higher energy consumption and increased utility bills.
  • Poor Air Quality: Without regular cleaning and replacement of filters, your AC can circulate dust, pollen, and other allergens throughout your home, potentially leading to health issues such as allergies or respiratory problems.
  • Shortened Lifespan: Components of an unmaintained AC system are more likely to suffer from wear and tear, leading to premature breakdowns and a shorter unit lifespan.
  • Increased Repair Costs: Minor issues that could be caught and fixed during routine maintenance can escalate into more significant problems that are much more costly to repair.
  • System Breakdowns: The likelihood of unexpected breakdowns increases when an AC is not maintained, often resulting in emergency repairs at the least convenient times, like during a heat wave.


What Regular Maintenance Should Be Done on an Air Conditioner?

Regular maintenance on an air conditioner should include the following:

  • Cleaning or replacing the air filters every 1-3 months, depending on usage and environmental conditions.
  • Cleaning the condenser coils annually ensures they are free of debris and dirt.
  • Checking the thermostat settings to ensure the system operates at the desired temperatures efficiently.
  • Inspect the condensate drain to ensure it is not clogged and can properly expel excess moisture.
  • Lubricating moving parts to reduce friction and wear.
  • Inspecting the system controls and electrical connections to ensure safe operation.

What Maintenance Services Are Required for an Air Conditioner?

The required maintenance services for an air conditioner include:

  • Professional inspection and cleaning of all mechanical and electrical components.
  • Refrigerant level checks and adjustments to ensure optimal performance.
  • Ductwork inspection for leaks, blockages, or damage.
  • Thermostat calibration to ensure accurate temperature control and system efficiency.

What Is Checked During AC Maintenance?

During AC maintenance, a technician will typically check the following:

  • Air filter condition
  • Thermostat calibration
  • Electrical connections and components
  • Condenser and evaporator coils
  • Refrigerant levels
  • Condensate drain system
  • System controls and safety circuits
  • Airflow through the system

What Are the Steps in Air Conditioning Maintenance?

Steps in air conditioning maintenance generally include:

  • Shutting off power to the unit for safety.
  • Removing debris from around the unit.
  • Cleaning or replacing the air filter.
  • Cleaning the condenser coils and checking for any necessary repairs.
  • Checking the refrigerant levels and inspecting for leaks.
  • Inspecting and tightening electrical connections.
  • Lubricating moving parts.
  • Checking the operation of the thermostat and control systems.
  • Inspecting the condensate drain and clearing blockages if necessary.
  • Testing the system after maintenance to ensure proper function.

Do You Need Annual HVAC Maintenance?

Annual HVAC maintenance is crucial for maintaining system efficiency, prolonging the unit’s lifespan, ensuring air quality, and preventing costly breakdowns. It also helps identify potential issues before they become serious problems.

Do You Need Your AC Serviced Every Year?

Servicing your AC annually is highly recommended to ensure it operates at peak efficiency, maintains air quality, and avoids unexpected and costly breakdowns. Annual service helps to keep your system running smoothly and extends its useful life, providing better comfort and saving money in the long run.

For more details or to schedule your next AC service, contact 75 Degree AC at (713) 598-2737 or via email at [email protected]. Our expert team is ready to ensure your air conditioning system is in top condition for any season.

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