Blog Troubleshooting Common HVAC Issues: When to DIY and When to Call a Pro Sep 28, 2025

As the seasons change, maintaining a comfortable home environment becomes essential, and a well-functioning HVAC system plays a crucial role in this. However, like any other mechanical equipment, HVAC systems can face occasional hiccups. At Murphy's Heating and Air Conditioning, we understand that timely troubleshooting can make a substantial difference in both comfort and costs. This blog post guides you through common HVAC issues and helps you decide when it's feasible to handle them yourself or when it's best to call in the professionals.

When your HVAC system acts up, it might seem like a complicated puzzle at first glance. However, some issues are quite simple and don’t require a professional touch. For instance, if your HVAC system is not producing heat or cool air effectively, the first step is to check the thermostat settings. Often, the thermostat is either set incorrectly or the batteries are depleted. This quick DIY fix can save you time and an unnecessary service call.

Another common issue is restricted airflow due to clogged filters. Over time, filters accumulate dust and debris, obstructing airflow. Regularly inspecting and replacing these filters every one to three months can ensure your HVAC system functions efficiently. Replacing filters is a straightforward task that most homeowners can handle themselves, significantly improving air quality and system performance.

Let's talk about something more technical: the circuit breaker. Should your HVAC unit suddenly stop working, it might have tripped the circuit breaker. Resetting it can often resolve the issue. It's a simple fix, yet it’s crucial to take caution. If the breaker trips repeatedly, it indicates a deeper electrical problem, in which case, professional intervention is necessary.

Now, let’s consider when it’s truly essential to call in Murphy's Heating and Air Conditioning professionals. One red flag is strange noises coming from your HVAC system. These could range from banging and clanging to squealing sounds, each indicating possible mechanical failure or loose parts. Diagnosing the root cause of unusual noises requires technical expertise. Ignoring such issues can lead to more significant damage and costly repairs down the line.

A sudden spike in your energy bill is another sign that you should contact a pro. While various factors can cause an increase in energy consumption, a malfunctioning HVAC system is often a major contributor. A professional technician can conduct a thorough inspection to ensure your system is running efficiently and help you avoid inflated energy costs.

If your system leaks water or refrigerant, it's time to alert the professionals. Water leaks can lead to structural damage and mold, while refrigerant leaks are hazardous to health and the environment. Handling refrigerants also requires special certifications due to their chemical nature.

Finally, a system that provides uneven temperatures or fails to maintain a consistent environment indicates deeper malfunctions that require technical precision to assess and rectify.

In conclusion, while a basic understanding of troubleshooting can empower homeowners to address minor HVAC issues, knowing when to call in Murphy's Heating and Air Conditioning experts is equally important. Regular professional maintenance ensures the longevity and efficiency of your HVAC system, keeping your home comfortable year-round. Our team is always ready to offer prompt, reliable service to tackle any challenges your HVAC system may present. Prioritize safety and efficiency by discerning between DIY tasks and those that require professional expertise.

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