Reasons Why Your Furnace Could Be Making Endless Noises
Owning a furnace for a long time means you understand all its sounds. Given this, it should be easy to tell when it starts making unusual noises. That said, hearing strange noises from the system can alarm you, especially when you do not know what is causing them. As such, you should never ignore the sounds because it could mean your system is experiencing a serious malfunction and might fail without timely attention. Instead, call an HVAC contractor to help you figure out the source of the noise and repair problematic components. Here are some top reasons why you might experience these sounds.
Rattling and Its Causes
If your furnace makes strange rattles, it is likely that a bolt or two has become loose and cannot hold the components of the heat exchanger in place. Note that the heat exchanger is the heart of a furnace since it is where the transfer of heat happens. However, if it becomes loose then it may cause vibrations, which produce a rattling sound when the furnace starts running. So, schedule immediate heating repairs because your unit may fail to heat your home if you ignore this problem.
Why You Have a Screeching Unit
Some noises indicate issues you could tolerate, while others need immediate attention. For example, if you hear screeching from your heater, it is possible that some internal components, like the blower motor bearings, are rubbing against one another. If this is the case, you must lubricate the area to eliminate the noise. However, if the noise persists, it could mean you are dealing with worn-out or broken moving parts. Alternatively, check if debris obstructs the suction port outside or on the blower itself. Note that only a heating expert can assess your unit and determine whether they can repair the malfunctioned components.
Malfunctions That Cause a Constant Clicking Noise
A clicking furnace sounds exactly like a click would. If this is the case, it means you have a problematic flame correction sensor. So, check to ensure the spark is strong enough before turning on the burners. The noise means that the unit is trying to light but cannot because the flame is too weak. If you are experiencing this issue, check to see if you have debris blocking the air intake for the burner assembly. In that case, you should immediately hire a heating technician to install a new burner assembly in your furnace.
These are common issues that affect your heating system and their possible solutions. You should contact an HVAC contractor when experiencing an issue that seems hard to resolve. They can diagnose and fix the problem, restoring your furnace's safety and efficiency. More so, timely furnace repairs will help maximize the unit's efficiency and increase its lifespan.