Ensuring your furnace operates safely and efficiently throughout the winter is crucial for your comfort and energy bills. While homeowners can perform some basic maintenance tasks, such as changing air filters and inspecting for obvious issues, there are critical maintenance checks and repairs that should only be performed by a qualified HVAC professional.
The following lists the 4 DIY tasks homeowners can perform, while our blog, How to Maintain Your Furnace: What HVAC Professionals Should Look After, addresses those that Comfort Pro should take care of.
1. Replace Furnace Filter
- Furnace filters trap dust, pet dander, and other airborne particles.
- The MERV (Minimum Efficiency Reporting Value) rating indicates the filter’s ability to capture particles. Higher MERV ratings mean better filtration but typically require more frequent replacement.
- Replace filters every 1-3 months or more often if you have pets, allergies or renovations that create additional dust.
- Dirty filters restrict airflow, reducing efficiency and potentially causing your furnace to overheat.
- Regular filter replacement improves indoor air quality.
2. Check Thermostat Operation
Verify Thermostat Accuracy: Use a portable thermometer to confirm that the temperature displayed on your thermostat matches the actual room temperature.
- Test Thermostat Function:
- Turn on the thermostat and observe the furnace’s response.
- If the furnace cycles on and off repeatedly within a short period (short-cycling), investigate potential causes such as a filter or blocked vents. Consider consulting a professional for an inspection.
- Check Thermostat Settings:
- If you have a programmable thermostat, ensure it’s correctly programmed to meet your desired heating schedule.
- Smart Thermostat Maintenance:
- For smart thermostats, check for any wireless connection issues or necessary software updates.
- Manually restart the thermostat if needed.
- Verify that the temperature and schedule settings are correct.
3. Inspect Air Registers and Dampers
- Clear Pathways: Ensure furniture, rugs, or curtains do not block air registers.
- Check for Leaks: Inspect visible ductwork for signs of damage like cracks, holes, or loose connections.
- Damper Operation: After turning on your furnace, ensure all dampers are open for proper airflow.
4. Maintain Your Humidifier (if applicable):
- Pad Replacement: If your furnace has a humidifier, inspect the pad at the beginning of the heating season.
- Replacement Schedule: Replace the pad as needed, following the manufacturer’s recommendations.
- Cleaning: Clean the humidifier cabinet regularly to prevent the buildup of mold and mildew.
Note: While homeowners can perform these basic checks, professional HVAC technicians have specialized tools and expertise to thoroughly inspect and assess your ductwork for leaks and other issues.
How much does a maintenance plan cost? Can I book a time online? Visit Comfort Pro’s maintenance page for all the answers!
