A furnace that will not light, shuts off too soon or blows cold air can leave your family uncomfortable fast. Home Run repairs gas and electric furnaces for homes in Covington, Conyers, McDonough and nearby Georgia communities, and we explain every repair in plain language.
Common Furnace Problems
- Ignition failure. A cracked or worn hot surface igniter is one of the most common reasons a gas furnace will not start
- Dirty flame sensor. The burners light, then shut off after a few seconds
- Overheating and limit trips. Often caused by a clogged filter or restricted airflow
- Inducer motor or pressure switch problems that stop the furnace before it lights
- Blower motor or capacitor failure, leaving the furnace hot but moving little air
- Blinking error codes on the furnace control board
Safety Comes First
Gas furnaces burn fuel inside your home, so every furnace repair visit includes safety checks on the burners, venting and gas connections. If we see signs of a cracked heat exchanger or a venting problem, we will show you what we found and explain why it matters. Every home with a gas furnace should also have working carbon monoxide alarms.
Keeping Repairs From Coming Back
Many furnace breakdowns trace back to airflow. A dirty filter, blocked return or closed vents make the furnace overheat and shut itself off. After a repair, we will point out anything that could cause the same problem again. A yearly heating tune-up catches worn parts early.
Furnace Repair FAQs
Why is my furnace blowing cold air?
Common causes include a thermostat set to fan-only, a failed igniter, a dirty flame sensor, a tripped limit switch from poor airflow, or a gas supply problem. We test each possibility and fix the actual cause.
What does the blinking light on my furnace mean?
Most furnaces flash a code that points to a specific fault. The code chart is usually on the inside of the furnace door. It is a helpful clue, but the underlying cause still needs testing.
Thinking about a new system instead? See furnace installation and replacement. We serve Covington, Madison, Macon and our full service area.