Getting Your Air Conditioner Ready for the Summer Heat

air conditioner

As the summer heat approaches, ensuring your air conditioner system is prepared is essential for maintaining a cool and comfortable home. Proper preparation not only enhances comfort but also improves energy efficiency and extends the lifespan of your AC unit. 

Common Reasons an Air Conditioner Could Break in the Summer

Summer is the busiest season for air conditioning systems—and the most common time for them to break down. As temperatures climb, your AC unit works overtime to keep your home cool. Without proper care or maintenance, that strain can lead to sudden and frustrating breakdowns. 

Understanding the most common causes of summer AC failures can help you avoid them and keep your system running strong all season long.

air conditioner

1. Dirty or Clogged Air Filters

Air filters trap dust, pollen, pet dander, and debris. When they become clogged, airflow is restricted, causing the system to work harder to cool your home. This not only reduces efficiency but can overheat the unit and lead to breakdowns.

2. Low or Leaking Refrigerant

Refrigerant is essential for cooling your home. If levels are low—often due to a leak—your system can’t effectively absorb and release heat. This can cause the unit to freeze up or short-cycle, leading to poor performance or a complete failure.

3. Dirty Condenser Coils

The condenser coils, located in the outdoor unit, release heat from your home to the outside air. When these coils are covered in dirt, dust, or debris, heat transfer is hindered, and the system becomes less efficient. This can eventually cause the compressor to overheat and fail.

4. Electrical Issues

Capacitors, relays, and other electrical components are vital to your AC’s operation. High summer demand can put extra stress on these parts, which then causes them to fail. Faulty wiring or aged components may lead to system shutdowns or prevent the unit from turning on altogether.

5. Frozen Evaporator Coils

If airflow is restricted due to dirty filters or blocked ducts, the evaporator coil can become too cold and freeze over. This creates a snowball effect—literally—where the system becomes less efficient and eventually stops cooling.

6. Thermostat Malfunctions

Sometimes, the issue isn’t the AC unit itself, it’s the thermostat. Faulty or poorly calibrated thermostats can misread the temperature, which then causes the system to turn on or off at the wrong times. This can lead to unnecessary wear and inconsistent cooling.

7. Blocked or Leaking Ductwork

Leaks or blockages in your ductwork can waste cooled air and force the system to work harder. That extra strain increases the risk of failure, especially during the hottest months.

8. Overworking an Old System

If your system is over 10-15 years old, it’s more prone to breakdowns—especially during extended use. Older units simply can’t keep up with demand and are more likely to suffer from wear and tear.

1. Replace or Clean Air Filters for the Air Conditioner

Air filters trap dust, pollen, and other airborne particles, so that you can enjoy clean air circulation. Over time, these filters can become clogged, which then reduces airflow and forces your system to work harder.

  • Frequency: Check your filters monthly and replace or clean them every 1-3 months, depending on usage and filter type.
  • Benefits: Clean filters improve air quality, enhance system efficiency, and reduce energy consumption.

2. Inspect and Clean the Outdoor Unit

The outdoor condenser unit can accumulate debris such as leaves, dirt, and grass clippings, which can obstruct airflow.

  • Steps:
    • Turn off the power to the unit.
    • Remove any visible debris around the unit.
    • Use a garden hose to gently clean the fins, being careful not to bend them.
    • Ensure at least two feet of clearance around the unit for optimal airflow.
  • Note: Regular cleaning prevents overheating and maintains efficiency.

3. Check the Air Conditioner Thermostat Settings

Ensure your thermostat is functioning correctly and set to a comfortable temperature.

  • Upgrade: Consider installing a programmable or smart thermostat to automatically adjust temperatures based on your schedule, which then improves comfort and energy savings.
  • Settings: Setting the thermostat to a higher temperature when you’re away can reduce energy usage.

4. Seal and Insulate Ductwork

Leaky ducts can lead to significant energy loss, which then makes your system less efficient.

  • Inspection: Check for visible gaps or disconnected sections in your ductwork.
  • Sealing: Use mastic sealant or metal tape to seal leaks.
  • Insulation: Insulate ducts in unconditioned spaces such as attics or crawl spaces to prevent energy loss. 

5. Schedule Professional Air Conditioner Maintenance

Even with regular DIY maintenance, it’s crucial to have a professional HVAC technician inspect your system annually.

  • Services Include:
    • Checking refrigerant levels.
    • Inspecting and tightening electrical connections.
    • Lubricating moving parts.
    • Cleaning coils and condensate drains.
    • Ensuring overall system efficiency.
  • Benefit: Professional maintenance can identify potential issues before they become costly repairs.
air conditioner

6. Ensure Proper Air Conditioner Airflow

Blocked vents and registers can hinder airflow, which then reduces system efficiency.

  • Action Steps:
    • Ensure furniture or curtains are not obstructing vents.
    • Clean vents and registers to remove dust and debris.
    • Keep interior doors open because this promotes even airflow throughout your home. 

7. Consider an Air Conditioner System Upgrade

If your air conditioner system is over 10-15 years old, then it might be time to consider an upgrade.

  • Advantages:
    • Modern units are more energy-efficient, which then leads to lower utility bills.
    • New systems offer improved comfort and advanced features such as smart controls.
    • Upgrading can reduce the likelihood of unexpected breakdowns during peak summer heat.

Avoid the Summer Heat with a Well-Running Air Conditioner

Preparing your air conditioner for the summer heat is essential for ensuring comfort, efficiency, and reliability. By following these steps, you can enjoy a cool and comfortable home all season long. If you need professional maintenance or want to discuss upgrading your system, then contact Trust Heating and Air today.