How to Maintain HVAC Systems

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Maintaining a comfortable and energy-efficient indoor environment is a year-round priority, and your heating, ventilation and air conditioning (HVAC) system plays a central role in achieving this goal. Proper HVAC system care and maintenance ensures your comfort and contributes to your system’s longevity and efficiency. 

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Let’s dive into HVAC maintenance tips with a comprehensive guide tailored to all your HVAC care needs. Understanding regular, seasonal and commercial maintenance tasks will help you stay on top of system care, optimize performance and maximize your investment for a more comfortable, cost-efficient home. 

Table of Contents

Regular Maintenance Tasks

Proper HVAC maintenance is essential to ensure the longevity, efficiency and performance of your heating, ventilation and air conditioning systems. Here are the regular maintenance tasks you should be performing. Staying on top of these important HVAC maintenance tips will help you maintain a comfortable and energy-efficient indoor temperature. 

Change Filters 

Changing air filters is a straightforward yet crucial task in air conditioner maintenance. Filters should be replaced every one to three months, depending on factors like filter type and indoor air quality. Dirty filters prevent good airflow, causing your systems to work harder and consume more energy. Additionally, clogged filters can lead to poor indoor air quality as they become less effective at trapping dust, allergens and pollutants. Regular filter changes improve the system and contribute to healthier indoor air. 

Clear Debris Around the Unit

Clear Debris Around the Unit - Your air conditioner's outdoor unit is exposed to various elements 24/7. Leaves, dirt and debris can pile on and around the unit if left unchecked. It's important to regularly clear the area around the unit to ensure proper airflow.

Your air conditioner’s outdoor unit is exposed to various elements 24/7. Leaves, dirt and debris can pile on and around the unit if left unchecked. It’s important to regularly clear the area around the unit to ensure proper airflow. Blocked airflow can cause your system to overheat, reducing efficiency and potentially damaging your components. Simple maintenance tasks like trimming bushes and removing debris can go a long way in maintaining optimal system performance and preventing unnecessary strain on your system. 

Check Electrical Connections

If you feel comfortable doing so, regularly inspect and tighten electrical connections within your air conditioning system. Loose or corroded connections can lead to system failures and even pose safety hazards. Examine components like capacitors and relays for signs of damage or wear. Faulty electrical components can result in improper functioning or potential breakdowns. If you’re uncomfortable working with electrical components, leave this task to your air conditioning technician.

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Visually Inspect Your Unit

Whenever you replace your air filters, take time to visually inspect your entire unit. Pay close attention to any signs of rust, corrosion or wear on components. Corrosion can indicate moisture-related issues that might affect system efficiency. Give your thermostat a once over — look at the battery levels and ensure it works properly. Make sure all vents are open, unblocked, and free of dust and mold. Finally, look at the outdoor unit and ensure it’s unblocked, level and clear of debris. 

Regular visual inspections can help prevent leaks, breakdowns and costly repairs. If you notice any issues, consult your air conditioner technician to assess the situation and recommend the appropriate solution.

Monitor Refrigerant Levels

Monitor Refrigerant Levels -  If you notice cooling issues or high energy bills, it's time to schedule a professional inspection to check refrigerant levels and address any leaks. 

Proper refrigerant levels are crucial for efficient air conditioning system operation. Low refrigerant levels can indicate leaks, which need addressing to prevent further damage. Refrigerant leaks affect cooling performance and can also damage the compressor. If you notice cooling issues or high energy bills, it’s time to schedule a professional inspection to check refrigerant levels and address any leaks. 

Calibrate Thermostat Sensors

Many air conditioning and heating systems rely on thermostat sensors to accurately read the temperature and adjust cooling or heating accordingly. Over time, these sensors can become inaccurate due to dust or other factors. Calibrating thermostat sensors ensures your system responds correctly to the desired temperature settings. Refer to your thermostat’s manual for guidance on calibrating or consider seeking professional assistance. 

Inspect and Clean the Blower Motor

The blower motor is responsible for distributing conditioned air throughout your home. Regularly inspect and clean the blower motor and its components, such as the fan blades and housing. Dust and debris accumulation can reduce airflow efficiency and strain the motor. Gently clean the motor and its parts, and ensure they’re well-lubricated if needed. 

Clean the Condensate Drain

The condensate drain line removes extra moisture produced while the system cools your space. Your drain line may become blocked with debris, algae or mold. Once too much builds up, it can lead to water damage and water backups. Regularly inspect your drain line and clear any clogs to prevent these issues. Adding a small amount of bleach or a specialized drain line cleaner can help prevent mold growth within the drain. 

Check Safety Switches

Check Safety Switches - HVAC systems are equipped with safety switches that shut down the system in case of malfunction. Testing these switches can prevent potential system damage and hazards. 

HVAC systems are equipped with safety switches that shut down the system in case of malfunction. Regularly test these safety switches to ensure they’re working correctly — this includes the high-pressure switch and the float switch in the condensate pan. Testing these switches can prevent potential system damage and hazards. 

Clean Condenser Coils

Outdoor condenser coils can accumulate dirt, debris and dust over time, preventing effective operation. Regularly clean and check your condenser coils to ensure proper heat transfer and optimal cooling performance. Use a gentle stream of water or a soft brush to clean the coils, and turn off the power to the unit before doing so. 

Book Professional Maintenance

Booking regular professional maintenance is vital for system longevity and optimal performance. Hiring a qualified technician ensures your system receives expert care. Scheduling annual inspections allows the technician to identify potential issues before they become significant problems. This preventive approach keeps your system running smoothly and minimizes the risk of unexpected breakdowns. With professional maintenance, you’ll enjoy peace of mind knowing your system is in the hands of an expert who’ll keep it in top-notch condition. 

Professional technicians will let you know your system’s condition and will have helpful advice for keeping your system in top condition. Additionally, they’ll perform essential tune-ups to ensure your HVAC is working as efficiently as possible. With scheduled professional maintenance, you’ll extend your system’s life span and reduce system outages. 

Seasonal Maintenance Checklist

Along with incorporating regular HVAC system maintenance tips into your routine, you should perform seasonal maintenance as the year progresses. At the beginning of each season, you’ll need to perform season-specific maintenance tasks to prepare your system for the changing weather. Let’s look at the maintenance HVAC tasks you need to do at the beginning of each season:

Spring HVAC Maintenance Tips

Spring HVAC Maintenance Tips

With springtime on the horizon, you’ll need to prepare for better weather. Focusing on optimal functioning after the winter cold will keep everything running efficiently. Here are the spring maintenance HVAC tasks you’ll need to perform:

  • Clear debris from outdoor units: While this is a regular maintenance task, doing it at the beginning of spring is essential. As the snow melts away and flowers bloom, it’s time to clear the outdoor condenser unit of any debris. Twigs, leaves and dirt washed into the condenser unit by melting snow need clearing to keep airflow optimal. A clear unit ensures proper ventilation and a well-functioning system. 
  • Adjust thermostat: With warmer temperatures on the horizon, setting your thermostat and ensuring its accuracy is essential. Adjust your thermostat to accommodate warmer temperatures and reduce heating use. Keep your thermostat closer to winter temps of around 68 to 70 degrees Fahrenheit at the start of spring. As spring warms, set your thermostat higher. The lower the difference between indoor and outdoor temperatures, the higher your energy savings. 
  • Check ductwork for leaks: Inspecting your ductwork for leaks is crucial for energy efficiency. Leaky ducts can result in cooled air escaping before reaching your living spaces, unnecessarily increasing energy consumption. Sealing any gaps or leaks helps maintain your system efficiency and keeps your home comfortable. 
  • Clean evaporator coils: Spring’s arrival is the perfect time to clean your air conditioning system’s evaporator coils. Over time, these coils accumulate dust and dirt, reducing their heat exchange efficiency. Cleaning the coils ensures optimal cooling performance and prevents your system from working harder than necessary.
  • Trim vegetation: As plants and bushes flourish in spring, ensure the vegetation around your outdoor unit is trimmed and cleared. Proper clearance prevents leaves and debris from obstructing airflow, enabling your system to function efficiently.
  • Upgrade to energy-efficient equipment: Consider upgrading to energy-efficient HVAC equipment during the spring. Modern systems are designed to consume less energy while providing the same level of comfort. Investing in energy-efficient equipment reduces your carbon footprint and leads to long-term savings on your energy bills.
  • Adjust humidifier settings: If your system includes a humidifier, adjust its settings for the spring season. As humidity levels naturally rise, you may need to reduce the humidity output to maintain a comfortable indoor environment. 

Summer HVAC Maintenance Tips

Summer HVAC Maintenance Tips

Summer brings the warmest temperatures and increases the strain on your air conditioning. You’ll need to look out for excess water, heat and stress during summer to prevent air conditioning issues. Keep your home cool this summer with these tips for summer HVAC maintenance: 

  • Set the thermostat to cool: Adjust your thermostat settings to activate your cooling system as temperatures soar. Ensure the temperature is set to a comfortable level while considering energy efficiency. Setting the air conditioner too cool can drive your bills up and increase the strain on the system. Find a comfortable mid-point that lets you stay cool inside without constantly running your AC. You can also program your thermostat for cooler temperatures while you’re home and higher temperatures while you’re away.  
  • Test cooling performance: Before the heatwave hits, test your cooling system’s performance. Turn on your air conditioner and ensure that cool air is being evenly distributed throughout your home. Make sure air is coming out of all your vents and that there are no unusual sounds. Any irregularities should be addressed promptly by a professional. 
  • Check fan blades: Inspect your outdoor unit’s fan blades for damage or debris accumulation. Blocked fan blades prevent good airflow and can lead to severe damage down the line. Clean fan blades to ensure optimal airflow and prevent undue strain on your system. 
  • Keep blinds and curtains closed: Reduce heat gain during the peak of summer — keep blinds and curtains closed during the hottest parts of the day. This simple measure can help your cooling system maintain a comfortable indoor temperature without excessive energy consumption. 
  • Consider shading the outdoor unit: Providing shade for your outdoor condenser unit can enhance efficiency. Direct sunlight can elevate the unit’s temperature — consider shading it with plants or a shade structure. Ensure the shading does not obstruct the unit’s airflow. 

Fall HVAC Maintenance Tips

Fall HVAC Maintenance Tips

As the leaves begin to turn and the days grow shorter, it’s time to shift your air conditioning and heating routine. Ensuring the smooth transition from hot summer into winter helps retain energy efficiency and system longevity. Here are the fall HVAC maintenance tasks you should perform:

  • Clear outdoor debris again: With extra debris due to falling leaves and fall winds, it’s crucial to clear the outdoor condenser unit of any accumulated debris. With plants dying and additional vegetation flying in the wind, checking your outdoor unit for debris buildup is essential. Keep the unit clear to ensure optimal heating during the cooler months. 
  • Inspect the furnace for damage: Before the temperature drops significantly, inspect your furnace for any visible signs of wear and damage. Check for rust, corrosion, loose wires, no flames and other potential issues. Identifying and addressing furnace issues early ensures your heating system functions smoothly when it’s cold.
  • Transition to heating: Adjust your thermostat to reflect the shift to heating mode once it begins getting colder. Ensure your thermostat accurately reads and maintains the desired indoor temperature. With the heat on and the thermostat working, you’ll ensure your home remains comfortably warm without wasting energy.
  • Seal ductwork: Fall is an excellent time to inspect your ductwork for leaks, gaps and damage. Leaky ducts can cause heated air to escape before reaching your rooms, leading to energy waste and uneven warmth distribution. Sealing any cracks helps maintain your home’s energy efficiency and ensures the warm air reaches its intended destination. 
  • Reverse ceiling fan direction: With colder weather, reversing your ceiling fan direction can play a pivotal role in maintaining warmth. Set the fans to rotate clockwise on a low setting. This creates an updraft, redistributing the warm air that naturally rises to the ceiling and circulating it throughout the room. 
  • Insulate exposed pipes: Consider insulating any exposed pipes in your home as temperatures drop. Insulated pipes are less susceptible to freezing, preventing potential damage and ensuring your heating system operates efficiently. 

Winter HVAC Maintenance Tips 

Winter HVAC Maintenance Tips

After fall prep, you should have adequate insulation to keep as much heat as possible. Once winter hits, you need to watch out for snow and ice buildup. They can cause issues and lead to your heat cutting out when you least expect it. Use these winter maintenance tips for your HVAC to stay warm all winter: 

  • Clear snow and ice: Keep snow and ice from building up on your outdoor unit. Too much ice and snow can prevent components from working and lead to breakdowns. Gently remove any buildup to ensure proper ventilation and optimal system performance. 
  • Seal gaps around windows and doors: Drafty windows and doors can undermine your heating efforts and result in energy loss. Inspect your home for drafts and seal any openings with weatherstripping or caulking. Properly sealed windows and doors keep cold air out and warm air in, contributing to your home’s energy efficiency. 
  • Monitor humidity levels: Indoor humidity is crucial to your comfort during the winter. Dry indoor air can lead to discomfort and potential health issues. Use your thermostat’s built-in readings or a hygrometer to monitor humidity levels, and consider using a humidifier to maintain a balanced and comfortable environment. Dry winter air can make your home uncomfortable, and humidifiers will help improve indoor air quality while keeping the house comfortable. Replace humidifier filters as needed for best results. 
  • Check for drafts and leaks: Along with sealing windows and doors, carefully inspect your home for drafts and leaks that could contribute to heat loss. Common areas to check include attics, basements and crawl spaces. Sealing drafts and leaks prevents cold air infiltration from problem areas and ensures your heating system avoids efficiency losses. 
  • Consider duct cleaning: Winter is an opportune time to consider professional duct cleaning. Clean ducts enhance indoor air quality and help your heating system operate efficiently. Dust, debris and allergens accumulating in ductwork can impact air quality and system performance. 

Commercial HVAC Maintenance Tips

Commercial HVAC Maintenance Tips

Commercial HVAC systems are the backbone of any small business. They ensure a comfortable and productive environment for employees, customers and clients. Commercial HVAC maintenance tips share some overlap with home HVAC maintenance tips, although commercial systems are much larger and need more assistance from professional technicians to ensure they work effectively. 

Here are some essential commercial HVAC maintenance tips to keep your small business system running smoothly and avoid costly disruptions:

  • Regular filter changes: Commercial HVAC filters need to be swapped regularly to keep the system efficient and the air clean. To meet commercial air filtration standards, your HVAC filters should have at least a Minimum Efficiency Reporting Value (MERV) of 13. Swap them out regularly — filters that see heavy use should be cleaned or changed every month to ensure proper airflow. 
  • Scheduled inspections: Establish a regular schedule for professional commercial inspections. HVAC technicians will identify potential issues, perform necessary maintenance tasks and recommend improvements to keep your system functioning optimally. Commercial systems handle larger loads with more complex equipment than residential systems. Use professional technicians to ensure your investment works well and lasts its full life span. 
  • Cleaning and coil maintenance: The evaporator and condenser coils in commercial HVAC units can accumulate dirt and debris over time, decreasing efficiency. Regular coil cleaning ensures effective heat exchange and efficient cooling and heating. 
  • Ductwork inspections: Regularly inspect and clean ductwork to prevent dust, allergen and contaminant buildup. Clean ducts contribute to better indoor air quality and allow the system to operate more efficiently. 
  • Energy efficient upgrades: Consider upgrading to energy-efficient systems and components. Modern systems are designed to reduce energy consumption while maintaining comfort, leading to cost savings over time. 
  • Air balance: Ensure proper air balance by regularly testing and adjusting airflow to different areas of your commercial space. This prevents hot or cold spots and ensures even comfort throughout the building. 
  • Employee training: Educate your employees about basic HVAC maintenance practices, such as changing air filters and promptly reporting unusual noises or issues. Their awareness can contribute to the early detection of problems. 
  • Emergency planning: Establish an emergency plan for HVAC system breakdowns. A trusted HVAC specialist on standby can minimize downtime and keep your business operations running smoothly. 

Invest in Your Comfort With Professional HVAC Services

Invest in Your Comfort With Professional HVAC Services. Contact us today!

Experience unmatched air conditioning and heating services — make Strada Air Conditioning & Heating your trusted partner for all your heating and air conditioning needs. Our expert technicians are equipped to handle installations, repairs and maintenance with precision and care. 

Don’t compromise on indoor comfort — let us optimize your system’s efficiency, ensuring your home stays the temperature you want year-round. From air conditioning and heating to boosting indoor air quality and changing your air filters, Strada Air Conditioning & Heating is here to assist you. For reliable service tailored to your needs, contact us online to schedule your appointment today!


Additional Resources on HVAC:

Strada Services CEO, Joe Strada

Joe Strada, owner of Strada Electric, Security & Air Conditioning, started working at the young age of 14. He’s never attended college, but he has spent his life dedicating his time and energy to his trade and providing high-quality services to his customers. At 19, Joe started working at a well-known air conditioning company and developing his commitment to excellence. He has state certifications in electric, plumbing, air conditioning, residential building and general contracting. During his years of training and experience, Joe noticed a sincere need for a dependable electrical contractor in Florida who embodied the same dedication to customer service in which he believed. In 2003, Joe co-founded Strada Electric, Security & Air Conditioning. Since then, the company has been in the business of providing peace of mind to customers. We offer expert electric, security and air conditioning solutions for homes and businesses, leveraging our experience to deliver professional and responsive service with reliability and respect.

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Strada Services CEO, Joe Strada

Joe Strada, owner of Strada Electric, Security & Air Conditioning, started working at the young age of 14. He’s never attended college, but he has spent his life dedicating his time and energy to his trade and providing high-quality services to his customers. At 19, Joe started working at a well-known air conditioning company and developing his commitment to excellence. He has state certifications in electric, plumbing, air conditioning, residential building and general contracting. During his years of training and experience, Joe noticed a sincere need for a dependable electrical contractor in Florida who embodied the same dedication to customer service in which he believed. In 2003, Joe co-founded Strada Electric, Security & Air Conditioning. Since then, the company has been in the business of providing peace of mind to customers. We offer expert electric, security and air conditioning solutions for homes and businesses, leveraging our experience to deliver professional and responsive service with reliability and respect.