Furnace noises should not be ignored. They can signal serious furnace problems. Most old model furnaces make a lot of noise, and both old and new model furnaces make humming noise or minor pops.
However, if you hear loud furnace noises, they could indicate a serious furnace problem that requires attention of a furnace repair technician.
Ignoring loud furnace noises is a mistake that can result in costly repairs or replacement later on. Here are three noises to listen for:
1. Loud scrapping noises
A loud scraping noise coming out of the furnace duct could indicate a problem with the blower wheel of the furnace. The noise may be because the blower wheel has come loose and is banging against the metal casing. The wheel may have come loose from the motor shaft that needs to be tightened by a professional.
The scrapping noise may also be because the blower wheel is broken. Also, a motor mount might have broken, causing the blower assembly to drop and hit the metal casing. A professional technician can diagnose the problem and resolve it by taking appropriate measures.
2. Whistling noises
You should try to determine where the whistling sound is coming from. Most often, gaps in the duct can result in the furnace making a whistling noise. Also, the sound may come from a small hole located near the connecting point between the furnace and the duct.
A clogged filter may also cause a whistling furnace noise. When the filter becomes clogged, the whistling noise will be made when the air passes through the tiny holes. You should pull out the filter and find out if the whistling noise stops.
In case the filter is caked with dirt, you should have it cleaned or replaced by a professional technician. This will not only solve the noise issue but also prevent serious furnace damage.
3. Loud popping or banging noises
Do you hear a loud pop or bang when the furnace is turned on? If so, it may indicate dirty furnace burners that should be cleaned by a professional technician to avoid damage to the furnace. Dirt or dust on the furnace burners results in an excess buildup of gas. As a result, the gas will ignite the burner after a delay, and you will hear a small bang.
You should not ignore any furnace noise of this nature because the explosion can crack the heat exchanger, resulting in expensive repairs.
Call Comfort Air for furnace maintenance and avoid furnace noises
Regular maintenance of the furnace will ensure optimum performance for the longer period. When it comes to furnace repairs, you should always contact a certified and experienced furnace technician.
You can contact Comfort Air if you want the help of NATE-certified and experienced technicians in the area of McComb, Mississippi.