It’s normal to hear a soft vibration coming from your furnace, as it generally indicates air is flowing through equipment and ducts. However, if the soft hum turns into a loud commotion, call a furnace repair specialist immediately for help. Before a major breakdown, the appliance often exhibits warning signs. Knowing how to interpret the following sounds will help you become more knowledgeable about what to expect from the necessary repairs.

3 Noises That Point to Furnace Repair

1. Loud Banging

If you hear metal scraping against metal or it sounds like an object is banging on the walls of the furnace chamber, an internal component has most likely snapped out of place. It will bump against other parts, increasing the risk of additional damage. Over time, the object could puncture equipment and lead to dangerous leaks. To keep your family safe and reduce the need for extensive repairs, have a technician remedy the issue as soon as it arises.  

2. High-Pitched Screeching

If the fan belt becomes loose or isn’t fitted correctly for the belt-drive blower, it puts additional strain on the part. A screeching or hissing noise could indicate the belt is cracked. The sound is often accompanied by the smell of burning rubber. If the belt breaks, the appliance won’t produce heat.

3. Persistent Clicking

When warming up and turning off, many furnaces make a few short, clicking noises. If the sound lasts the entire time equipment it is running, there could be an issue with the fan, flame sensor, motor bearings, or gas valves. These components often make ticking sounds when loose, broken, or stuck in place. Continuing to use the equipment places more strain on the entire system, draining more energy in the process.

If you’ve heard any of the above sounds coming from your furnace, contact the furnace repair experts at Ashland Furnace in Ashland, KY, for help. They have more than 50 years of experience tending to the heating and cooling needs of residents throughout the state. To schedule furnace repair or an inspection with the Boyd County HVAC contractors, call (606) 325-3211, or visit them online to learn more about their services.