What is the most common problem with furnaces?

November 17, 2023
What is the most common problem with furnaces?

When examining furnace problems, we’ve identified several issues intrinsic to the furnace itself that are most frequently at the root of service calls. Each of these furnace problems can significantly impact the performance and efficiency of a heating system. The following are the five most common furnace problems that homeowners encounter.

1. Malfunctioning Ignition or Pilot Light

A common furnace issue often encountered is a faulty ignition or pilot light. These components are crucial for initiating the heating process. An ignition system that fails to engage or a pilot light that won’t stay lit can prevent the furnace from starting, thereby halting heat production.

2. Blower Motor Problems

The blower motor is what circulates heated air through the ductwork in a house. Should this motor fail or start to operate inefficiently, it can lead to a lack of heat and airflow. Problems can range from motor bearing wear, which may produce operational noises, to complete motor failure requiring professional replacement.

3. Heat Exchanger Issues

The heat exchanger in a furnace is vital to safely providing heat. Cracks or breaches in the heat exchanger are serious concerns, as they can affect the ability of a furnace to heat properly and pose potential safety risks.

4. Limited Airflow Due to Clogged Filters

While air filters might not be a component of the furnace itself, their condition directly affects furnace performance. Clogged or dirty filters restrict airflow, causing the furnace to overwork and potentially overheat.

5. Thermostat Calibration Problems

Problems with the calibration of a thermostat can cause the furnace to cycle on and off more than necessary or not run long enough, leading to erratic temperature changes. A professional can help recalibrate the thermostat, so it will work correctly again.

At Guidry's Air Conditioning & Refrigeration, Inc in Raceland, Louisiana, we provide heating repair, installation, and maintenance for your home. Our friendly team also provides electrical repairs, standby generators, and duct cleaning services for homes in the area. Contact Guidry's Air Conditioning & Refrigeration, Inc for more information today!