Greater Houston Area
TACLA: A00681C
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What Are the Noises Your Furnace Can Make?
A functional and efficient furnace is essential for a comfortable and healthy home during the cold months. Therefore, consider any strange happenings that may indicate furnace failure.
For example, although HVAC systems typically make some sounds, loud and unusual noises often indicate something is wrong. Discover some furnace noises and what the sounds mean.
Whistling Noises
Screeching or whistling sounds primarily signify dirty filters. The buildup of dirt and grime restricts the airflow. As a result, air tries to push its way out, which results in odd sounds. In this case, clean the air filter or replace the component if necessary.
If the remedy above does not solve your problem, the sounds may indicate a faulty blower motor.
Humming Sounds
Subtle humming noises may not indicate serious problems. In most cases, hearing some noise as the furnace ignites and starts running is normal. But if you experience a loud humming sound, something may be wrong with your HVAC system's electrical components. For instance, the fan motor may not work correctly.
In this case, refrain from attempting to repair the fan motor yourself. Instead, call a professional HVAC technician for inspection and necessary action.
Rattling Sounds
Rattling noises may result from several causes. One of the most common sources is loose screws or other items rattling inside the HVAC cabinet.
Scraping Noises
Scraping noises mainly happen when the blower wheel becomes loose and rubs against something inside your unit. If not addressed, this problem can cause wear and tear to other components.
Therefore, don't operate your furnace if you hear scraping noises. Instead, shut it off immediately and contact a professional HVAC technician to inspect the system and fix the problem. Otherwise, you may spend more money in the long run to repair the damage from this issue.
Chirping Sounds
A chirping noise is sometimes expected as the heating system warms up. But if you notice loud chirping noises all the time, a faulty blower is the most likely cause. For example, the blower motor pulley may be out of alignment. Also, the issue may mean that the mounting plate has become detached and is touching the blower wheel.
Booming Noises
A dirty burner is the most likely cause of loud booming or banging noises. The burner starts working inefficiently when it has dirt and dust all over it. The inefficiency leads to an accumulation of gas, which releases with a loud boom when the furnace ignites.
Loud noises are a nuisance and may indicate that your heating system is about to fail. If you don't take proactive measures, your furnace may fail when you least expect it to, and you may end up with costly repairs.
Contact a reliable HVAC technician as soon as you notice any of these noises coming from your furnace. The specialists will inspect and repair the system to ensure that your heating system runs smoothly for a long time.
You can trust us at Environmental Air Systems, Inc., to provide the best HVAC services and repairs for your noisy furnace. With our years of experience and certified technicians, you can rest assured that we'll get the job done right. Contact us today for reliable HVAC services.
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Address: 4913 Mangum Rd. Houston, TX 77092
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Greater Houston Area: (713) 680-3274
License #: TACLA: 00681C, TACLA: 64859C
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