Furnaces naturally make occasional sounds when they’re in use, but they’re largely quiet in general. If the unit suddenly becomes unusually noisy, it could be indicative of a problem that requires attention from a heating repair professional. Be mindful of these specific sounds, along with what they could mean, so that you don’t waste a moment before hiring an expert to resolve the problem.

What Strange Furnace Noises Might Mean

1. Squealing

A squealing noise may be due to a problem with the blower motor. The belt could be worn, or the motor itself may be in danger of failure. Sometimes, screeching noises develop because the motor’s wheel loses lubrication and rubs against a neighboring part. If the problem is left untreated, the constant wear can take its toll and lead to frequent heating repairs. It may also shorten the furnace’s life expectancy.

2. Banging

If the heat exchanger is damaged, it may cause a banging noise to emanate from the furnace. The problem here isn’t just the noise but the fact that a damaged heat exchanger can pose a carbon monoxide threat. It’s important to switch the heating system off right away if you hear this noise and contact a furnace repair professional to investigate.

3. Rumbling

Rumbling can result from a dirty or poorly adjusted pilot light. If the flame isn’t blue when burning, that could be an indication that your heating repair professional needs to focus on the light. However, rumbling can also indicate a dirty gas burner or a loose panel on the outside of the furnace. In more rare instances, the sound might suggest that the heat exchanger is leaking, which can be a safety threat. In all cases, it’s best to have a heating maintenance professional confirm the problem.

Your furnace is in good hands when you choose the professionals at A & B Heating & Air Conditioning. Proudly serving northern Kentucky, southeast Indiana, and the Cincinnati, OH, region since 1966, the company offers an extensive range of heating and cooling services. Whether you require heating repairs or an inspection, you can trust them to detect and resolve your concerns promptly. They also offer emergency services 24 hours a day. Visit the company’s website to find out more about their heating maintenance plan, or give them a call at (859) 525-0100 to schedule an appointment.