Skip navigation to main content.

7 Signs it’s Time to Replace Your HVAC System

Your HVAC system—responsible for heating, ventilation, and air conditioning—plays a crucial role in maintaining a comfortable temperature in your home year-round. In the Sacramento region, where temperatures vary widely, you’re likely to run your HVAC almost daily, whether for cooling in summer or heating in winter. As one of the most significant investments in your home, keeping it in optimal condition can help avoid costly repairs and ensure efficient operation.

Know the Age of Your HVAC System

One of the first things to consider is the age of your HVAC system. If it’s over ten years old, you may want to start thinking about a replacement. According to the U.S. Department of Energy, HVAC systems generally last between 10 and 15 years, after which their components begin to wear down and become less efficient. Keeping an eye on the age of your system can help you plan for future upgrades before an unexpected breakdown occurs.

Energy Efficient AC Unit

Keep Your HVAC Unit Clean

Regular cleaning is essential to prevent dust and debris from clogging the system. When components become blocked, the unit must work harder to regulate your home’s temperature, which can lead to overheating and accelerated wear. Ensure that the area around your HVAC unit is clear of obstructions, and consider professional cleaning services to keep internal components functioning optimally.

Watch for Unusual Spikes in Energy Bills

A sudden increase in your monthly energy bill, aside from rate hikes, may indicate an issue with your HVAC system. This could result from inefficiencies caused by worn-out components, clogged filters, or other problems requiring attention. If you notice a consistent rise in energy usage without a corresponding increase in household activity, it might be time for an inspection.

Notice Uneven Temperatures in Your Home

If some rooms or areas of your home feel warmer or cooler than others, this could signal a problem. Uneven temperatures can result from a variety of issues, from a faulty thermostat to a more serious problem within an aging system. Addressing these issues early can often prevent larger problems down the line. Bonney’s trusted technicians can diagnose the cause and recommend solutions to restore balanced comfort throughout your home.

Pay Attention to Constantly Running or Cycling Systems

During especially hot summers, it’s normal for your air conditioner to run frequently. However, if it never seems to shut off, this could indicate the system is struggling to meet the thermostat setting. This might be due to a dirty or faulty sensor or even an aging unit that’s no longer up to the task. Conversely, if your system frequently turns on and off (a process called short cycling), this too could be a sign of trouble and should be inspected.

Listen for Unusual Noises

While it’s normal to hear your HVAC system activate, strange noises like clanking, rattling, or banging could mean there are loose or damaged parts inside. Ignoring these sounds can lead to more severe damage over time. A Bonney-certified technician can quickly identify the source of the noise and provide the necessary repairs to restore quiet operation.

Be Aware of Unusual Odors

Odd smells, such as a musty or moldy odor, can be a sign that your system is nearing failure or needs maintenance. These smells might indicate mold or mildew buildup, which can affect air quality and harm your health.

Consider Replacement Over Expensive Repairs

If you find yourself repeatedly paying for HVAC repairs, it may be time to consider a replacement. As a general rule, avoid spending more than half the cost of a new system on repairs for your existing unit. A new HVAC system, though a significant investment, may save you money over time by improving efficiency and reducing repair costs.

Bonney’s team of trusted, certified technicians is here to help with all your HVAC needs. Whether it’s maintaining, repairing, or replacing your system, we offer industry-leading warranties to protect your investment and keep your home comfortable year-round. Contact Bonney today to schedule an appointment and ensure your HVAC system is in top condition.