The furnace is known as a moderately noisy part of the heating system. More so, when you've had your system for a long time, you can tell which noises are regular and when something is amiss. Generally, any loud and unusual noises indicate that something could be wrong with it. In this case, rattling is one of the most unsettling sounds you might experience from your heating system. Below are some top reasons why a furnace might rattle and how to resolve it.
Could the Heat Exchange Unit Have Cracks?
The heat exchanger is an essential component of the furnace as it holds all the combustion gases resulting from the heating process. Given this, it experiences a lot of expansion and contracting as the heater heats up and cools down over the years. As a result, it's not unusual for the material to crack and release carbon monoxide. You should know that this can be dangerous because the gas is colorless and odorless. In most cases, people know of a possible leak through the detector or from the symptoms. Unfortunately, poisoning is common when this gas leaks into the home. So, contact a furnace repair technician immediately if your unit rattles and the detector has registered the gas. The good news is it possible to fix the heat exchanger by repairing the leak. However, if it's older, consider replacing it.
Are there Issues with the Ductwork?
You should know that rattling noises could also come from your ductwork. In this case, loose points in the ductwork will rattle when warm air blows through them and causes vibrations. Moreover, it could also mean the system is leaking heat into parts of the home where it's not required. So, get a technician to assess your ductwork and recommend the best repairs. Ultimately, correcting problems in the ductwork can improve the unit's energy efficiency.
Do You Have Loose Panel Covers and Bolts?
As your unit ages, screws and other parts will wear out. Moreover, bolts will make rattling noises as they age and become loose. Note that you can solve this problem by getting a technician to inspect the unit and tighten all the loose connections. Also, since most components of the furnace have metallic panels as a cover, rattling could mean that parts of the panel are loose. The good news is tightening the loose parts will solve this problem.
The only way to know the system isn't damaged or posing a safety hazard is to hire a heating service technician every time you notice a rattling sound coming from the unit. They'll help you solve all the problems and restore the system's efficiency for a quiet operation.
For more information, contact heating system services near you.