DIY or Call a Pro? When to Tackle AC Issues Yourself & When to Get Help
When the heat of summer rolls in, there’s nothing more comforting than a well-functioning air conditioning system. However, air conditioning units, like any other home appliance, are susceptible to problems over time. Whether it’s a system that suddenly stops cooling, a strange noise emanating from the vents, or a musty odor, these common AC problems can be a real headache. As a homeowner, it’s tempting to want to fix things yourself, especially when it seems like a simple problem. But when should you roll up your sleeves and tackle the issue, and when should you call a professional HVAC technician? In this blog, we’ll explore common AC issues and provide HVAC repair tips, so you can determine when it’s time to get your hands dirty and when you should call in the pros.
Understanding Your AC Unit and the Importance of Proper Maintenance
Before deciding whether to fix an air conditioner that won’t cool yourself, it’s essential to understand how your air conditioning unit works. Air conditioners are complex systems designed to cool the air in your home by circulating refrigerant and transferring heat from inside the house to the outside environment. Over time, parts of the system may experience wear and tear, or dirt and debris can accumulate, causing the system to operate inefficiently. Regular maintenance is crucial to keep the system running smoothly and avoid costly repairs. Some common maintenance tasks include changing the air filters, cleaning the condenser coils, and ensuring that the thermostat is calibrated properly.
Routine maintenance can prevent many issues, but it’s not always enough. Understanding the complexity of your system can help you determine when to address problems on your own and when to call in a professional. The next section covers some of the most common air conditioning issues and helps you decide if they’re DIY fixable or require expert intervention.
Common Air Conditioning Problems and DIY Fixes
There are a number of air conditioning issues that homeowners may be able to fix themselves. Some of these problems are relatively simple to diagnose and repair, while others may require more extensive expertise. Below are a few common AC problems and HVAC repair tips to help you assess whether you should try to fix them yourself or call a pro.
1. Clogged or Dirty Air Filter
One of the most common air conditioning problems is a clogged or dirty air filter. Air filters are designed to trap dust, dirt, and other particles from the air, preventing them from entering the AC unit. When the filter becomes clogged, it restricts airflow and can cause the air conditioner to work harder, resulting in poor cooling performance or even system failure.
Fortunately, this is an easy fix for homeowners. Replacing or cleaning the air filter is a simple task that can be done in just a few minutes. Most air filters need to be replaced every one to three months, depending on usage. If you haven’t checked your filter in a while, this is the first thing you should do when your AC isn’t cooling properly.
2. Thermostat Issues
Sometimes, an air conditioner might not be cooling your home because the thermostat is malfunctioning. This could be due to dead batteries, incorrect settings, or a broken thermostat. In many cases, the issue can be resolved by simply replacing the batteries or adjusting the settings on the thermostat. However, if your thermostat is not responding at all, it could be a sign of a deeper issue, such as a faulty wiring connection or a failed sensor.
Testing your thermostat is straightforward—set it to a lower temperature and check if the AC kicks on. If the system doesn’t respond or the temperature doesn’t change, you might need to replace the thermostat or get it recalibrated. Replacing a thermostat is typically a task you can do on your own, but if you suspect wiring or sensor issues, it’s better to call in a professional.
3. Frozen Evaporator Coils
Frozen evaporator coils are another common AC issue. When the coils freeze, the air conditioner will stop cooling properly, and ice may start to form on the coils. This problem is usually caused by poor airflow, low refrigerant levels, or a dirty air filter. If you suspect your evaporator coils are frozen, the first step is to turn off the system and let the ice melt. Once the coils have thawed, check the air filter, clean the coils, and ensure the airflow is not obstructed.
If your coils freeze again after taking these steps, it could indicate a refrigerant leak or a more serious issue. While thawing the coils and cleaning the system can sometimes solve the problem, if it persists, it’s best to call a professional HVAC technician to inspect the refrigerant levels and diagnose the underlying issue.
When to Call a Professional HVAC Technician
While some air conditioning problems can be fixed on your own, others require the expertise of a trained HVAC professional. Calling a technician is often necessary when dealing with more complex issues or when you’re unable to fix the problem on your own. Below are a few signs that it’s time to call a professional for help.
1. Low or Leaking Refrigerant
Refrigerant is the substance that helps cool the air in your home. If the refrigerant level is low or if there is a leak, your air conditioner won’t be able to cool your home efficiently. Unfortunately, diagnosing and repairing refrigerant leaks is not something you can do yourself, as it involves working with chemicals and handling specialized equipment. Low refrigerant is often a sign of a leak, and the leak must be located and sealed before the system can be refilled. An HVAC professional will have the necessary tools to find and repair refrigerant leaks and recharge the system with the appropriate amount of refrigerant.
2. Electrical Issues
If you notice that your AC system isn’t turning on, is tripping the circuit breaker, or is blowing hot air, the issue could be electrical in nature. Problems with the electrical components of your system, such as the capacitor, compressor, or wiring, can be dangerous to handle on your own. Electrical repairs are often complex and can pose a serious risk of injury or further damage to your system if not done correctly.
When in doubt, it’s always safest to call a professional when electrical problems arise. An HVAC technician has the training and expertise to safely diagnose and repair electrical issues, ensuring that your system is functioning properly and safely.
3. Strange Noises or Odors
Air conditioners are designed to operate quietly, so any strange noise or odor could indicate a serious problem. Grinding, squealing, or rattling sounds might suggest that a part has become loose or is malfunctioning. Additionally, if you notice a musty or burning smell coming from your AC vents, it could be a sign of mold growth or an electrical issue.
While some sounds, like a rattling fan blade, can be fixed by homeowners, other noises or odors require professional intervention. An HVAC technician can inspect your system, locate the source of the noise, and make the necessary repairs. For any smell that indicates a potential fire or electrical hazard, it’s crucial to turn off your system and call a professional immediately.
Weighing the Pros and Cons of DIY vs. Professional Help
When it comes to air conditioning issues, it’s important to know when to tackle a problem yourself and when to call in a professional. Simple issues like clogged filters or thermostat malfunctions are often easy fixes that you can handle on your own. However, problems that involve refrigerant, electrical components, or complex mechanical issues should be left to trained HVAC professionals to ensure safe and effective repairs.
If you’re unsure whether to DIY or call a pro, it’s always better to err on the side of caution. Attempting complex repairs without the necessary expertise can lead to further damage or even injury. By staying proactive with regular maintenance and knowing when to seek professional help, you can keep your air conditioning system running efficiently and ensure that your home stays cool and comfortable all summer long.
Need HVAC Services in St. Louis, MO?
Keep cool or stay warm with Ashley Brothers Heating & Cooling. Since 1999, Ashley Brothers have been providing residential and commercial services to the St. Louis and Jefferson County area. We specialize in the installation of new equipment, heating and cooling repair, and furnace cleaning. Craftsmanship is important, equipment choice is too. We work with only top brands like Amana, Goodman, York, and McLain. It is understandable that replacing or upgrading your equipment can be daunting. Ask us about financing. We repair all heating and cooling equipment brands. Heating and cooling repairs can happen at random, take advantage of our 24-hour emergency service. Call us today about your concerns.