The Top Five Furnace Problems

Furnace Problems
Buying a home is a major investment and it’s important to keep it in good shape with routine maintenance. But many homeowners neglect to remember their furnace, which is often working silently behind the scenes. That can result in the furnace needing replaced, which can be costly. Here are the top five furnace problems homeowners may face. 
Bad Filters

Filters should be replaced regularly, usually every couple of months. When they’re forgotten about they get clogged up, which affects how air is circulated in the home. 

A Bad Thermostat

Sometimes, the problem may not be the furnace at all but the thermostat causing the issues. When a thermostat isn’t working, it won’t communicate with the furnace properly causing the homeowner to think their heater is broken. 

Missed Maintenance

Furnaces should have annual maintenance and cleaning to ensure that everything is in proper working order and there are no problems. With routine maintenance, furnaces are less likely to break down.

Improper Heater

In some cases, especially after a homeowner adds on to the home, the furnace may not work properly because it’s not the correct size for the home. That can cause the heater to continuously cycle or not heat the home at all. 

Needs Replacing 

Even a heater that’s been perfectly maintained eventually needs replaced. If everything has been checked over and there are still no signs as to why the heater isn’t working properly, it may be time to purchase a new one.
If you’re careful and take good care of your heater, it may last you many years. To learn more about common furnace problems to watch for, call E.T. Ferrell & Son Heating & Air Conditioning at 919-658-2971. 
Essential Heating Repair
July 14, 2025
Discover essential heating repair tips from E.T. Ferrell & Son for Goldsboro, NC. Keep your furnace efficient and reliable with expert advice from local HVAC professionals.
Heating System Repair Service
December 9, 2024
Learn how to select the best heating system repair service with guidance from E.T. Ferrell & Son. Expert tips for Mount Olive and Eastern NC homeowners seeking reliable HVAC care.
Man replacing an air filter in a wall vent.
October 15, 2018
Discover what causes dirt or debris to come out of your room registers. E.T. Ferrell & Son Heating & Air Conditioning explains the common issues and how to address them. Learn more today!
On-wall air conditioner remote control
August 20, 2018
Protect your AC unit from theft with expert tips from E.T. Ferrell & Son Heating & Air Conditioning. Learn how to safeguard your HVAC system to avoid costly replacements and damages.
Heating and air conditioning units
June 18, 2018
E.T. Ferrell & Son Heating & Air Conditioning highlights 4 signs you may be wasting money on your HVAC unit. Identify these issues and save energy, money, and time with our expert advice.
Cooling System
April 19, 2018
Want a more efficient cooling system? E.T. Ferrell & Son Heating & Air Conditioning shares key steps you can take today to improve your HVAC system's performance and lower your energy bills.
cleaning your air conditioner
February 20, 2018
Add these 5 essential HVAC tasks to your spring cleaning checklist. E.T. Ferrell & Son Heating & Air Conditioning ensures your system is ready for the season with our professional tips and services.
Digital thermostat
October 22, 2017
Learn how to save money on heating during the winter with E.T. Ferrell & Son Heating & Air Conditioning. Discover energy-efficient tips and get your heater ready for the cold season. Call us today!
Tankless Water Heater
August 28, 2017
Not sure whether to repair or replace your furnace? E.T. Ferrell & Son Heating & Air Conditioning offers guidance on making the right decision for your home’s heating system. Get expert advice now!
Commercial Indoor Air Curtain
June 26, 2017
Preparing your HVAC system for summer vacation? E.T. Ferrell & Son Heating & Air Conditioning provides essential tips to maintain your system while you're away. Schedule a check-up with us today!