DIY HVAC Maintenance: What You Can Do and When to Call a Pro

May 13, 2024

Maintaining your home's HVAC system ensures it runs efficiently, lasts longer, and keeps your energy bills in check. While some aspects of HVAC maintenance can be complex and require professional attention, there are numerous tasks that homeowners can undertake themselves to keep their systems in top shape. In this post, we’ll explore the manageable DIY maintenance tasks for most homeowners and identify when it's time to call in the pros.


DIY Maintenance Tasks for Homeowners

1. Changing Air Filters

One of the easiest and most impactful tasks you can do is to regularly change the air filters in your HVAC system. Dirty filters restrict airflow, forcing your system to work harder, which can lead to higher energy bills and a shortened lifespan for your unit. Check your filters every 30 to 60 days and replace them as needed.


2. Cleaning Vents and Registers

Dust and debris can accumulate on vents and registers, obstructing airflow and decreasing system efficiency. Vacuum the vents throughout your home every few months to remove any dust buildup. Make sure the vents are not blocked by furniture or drapes.


3. Inspecting and Cleaning the Outdoor Unit

The outdoor unit of your HVAC system can get clogged with leaves, dirt, and other debris. This can impair its ability to function effectively. Ensure it's clear of debris by gently hosing it down and trimming any plants obstructing airflow.


4. Checking Thermostat Settings

Ensure your thermostat is working correctly by checking its settings. If you have a programmable thermostat, ensure it’s set according to your schedule for optimal energy savings.


5. Inspecting Insulation on Refrigerant Lines

Check the insulation on refrigerant lines leading into your house. If the insulation is frayed or missing, replace it to ensure your system operates efficiently.


When to Call a Professional

While many maintenance tasks are within the reach of homeowners, certain situations require the expertise of a professional. Here are signs you need to call a pro:


1. Annual Maintenance Check-Up

It’s advisable to have a professional HVAC technician perform an annual maintenance check-up. This includes checking coolant levels, inspecting electrical components, and testing the system's performance.


2. Strange Noises or Smells

If your HVAC system begins making unusual noises, such as grinding, banging, or squealing, or strange smells like burning or mustiness coming from the unit, it’s time to call a professional.


3. Poor Performance

If your system can’t keep up with temperature demands or is constantly cycling on and off, these could be signs of a deeper problem that requires professional diagnosis and repair.


4. Refrigerant Issues

Handling refrigerant requires special certifications due to its potentially hazardous nature. If you suspect your system is low on refrigerant or has a leak, contact a professional.


5. Electrical Issues

Any problems that involve electrical components should be handled by a professional. This includes issues with your HVAC system's breaker, wiring, or fuses.


Conclusion

Proper maintenance of your HVAC system extends its lifespan and ensures it runs efficiently, saving you money on energy bills and avoiding costly repairs. By taking on manageable DIY maintenance tasks and knowing when to call in the professionals, you can keep your system in prime condition and ensure a comfortable home environment year-round. Remember, when in doubt, it’s safer and often more cost-effective to consult with a professional.

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When it comes to indoor air quality, your HVAC system's air filter plays a much bigger role than you might think. It’s not just about trapping dust; it’s about protecting your health, extending the life of your HVAC system, and improving overall comfort in your home. However, with numerous options available, including HEPA filters, MERV-rated filters, and UV air purifiers , how do you determine which one is best suited to your needs? Let’s break down the differences between these filter types and help you choose the best one for your home and lifestyle. What Is a HEPA Filter? High-Efficiency Particulate Air (HEPA) Filters HEPA filters are designed to capture at least 99.97% of particles as small as 0.3 microns. That includes dust, pollen, pet dander, mold spores, and even some bacteria and viruses. Pros: Exceptional filtration, excellent for allergy or asthma sufferers. Removes tiny particles that standard filters may miss. Often used in hospitals, clean rooms, and homes with health-sensitive occupants. Cons: Not typically compatible with standard residential HVAC systems without modification. Can restrict airflow if not installed properly, which may strain your HVAC system. More expensive than standard filters. Best For: Households with severe allergies, asthma, or compromised immune systems, especially if paired with a custom HVAC solution designed to handle HEPA-level airflow resistance. What Is a MERV Rating? Minimum Efficiency Reporting Value (MERV) MERV is a rating system that measures how effectively a filter captures particles of varying sizes. MERV ratings range from 1 to 20, the higher the number, the finer the filtration.