{"id":3519,"date":"2024-02-05T12:08:08","date_gmt":"2024-02-05T17:08:08","guid":{"rendered":"https:\/\/orzechheating.ca\/?p=3519"},"modified":"2024-02-06T08:19:36","modified_gmt":"2024-02-06T13:19:36","slug":"furnace-making-knocking-noise-when-off","status":"publish","type":"post","link":"https:\/\/orzechheating.ca\/blog\/furnace-making-knocking-noise-when-off\/","title":{"rendered":"Furnace Making Knocking Noise When Off? Here\u2019s What To Do"},"content":{"rendered":"
Ever heard those weird knocking sounds from your furnace even when it’s off? Let’s figure out what’s up with that and how to get your heating system running smoothly and safely.<\/p>\n
Possible causes for your furnace making a knocking noise when it\u2019s off include metal duct expansion, loose panels, blower motor issues, duct obstructions, improper installation, and high air pressure. Regular maintenance and professional help are key to resolving these issues and ensuring a quiet and efficient heating system.<\/strong><\/p>\n To help you best understand how some of these causes can contribute to your furnace making loud noises when off, we\u2019ve broken down the causes, impact and some solutions below.<\/p>\n Have you ever wondered why your furnace ducts make knocking noises even when the heating system is inactive? Metal ducts are prone to expanding and contracting as temperatures fluctuate. When your furnace is turned off, the cooling process may cause the ducts to contract, resulting in audible knocking sounds.<\/p>\n <\/p>\n Knocking or banging sounds when the furnace is off may also be attributed to loose air filtration cabinets.. These cabinets, when not securely fastened, can vibrate due to environmental factors or even minor movements within the heating system.<\/p>\n <\/p>\n Issues with the blower motor can contribute to your furnace making banging noises when it’s not in operation. The blower motor is responsible for circulating air, and irregularities in its components can result in disruptive sounds. Carefully check if your blower motor is having issues<\/a>.<\/p>\n Sometimes, the culprit behind your furnace making loud noises when off is a physical obstruction within the ductwork. Objects, debris, or even pests can find their way into the ducts, causing disturbances.<\/p>\n <\/p>\n Improperly installed ductwork can lead to various issues, including knocking noises when the furnace is off. Misaligned or loosely connected ducts may produce sounds due to air pressure changes.<\/p>\n Excessive air pressure within the ducts can result in your furnace making loud noises, even during its idle state. This can occur due to a variety of reasons, including closed vents or a blocked air return.<\/p>\n While the tips that we\u2019ve outlined in this blog can assist in troubleshooting, persistent knocking noises may indicate a deeper issue. Knowing when to call a professional<\/a> is crucial for maintaining the efficiency and longevity of your heating system.<\/p>\n Signs for Professional Assistance:<\/strong><\/p>\n Understanding the reasons behind your furnace’s knocking noises is crucial for your home’s comfort and safety. If these tips don’t resolve the issue, or if you’re unsure, it’s wise to seek professional help. Don’t hesitate to contact a furnace repair expert<\/a> to ensure your system is functioning correctly and efficiently.<\/p>\n","protected":false},"excerpt":{"rendered":" Ever heard those weird knocking sounds from your furnace even when it’s off? Let’s figure out what’s up with that and how to get your heating system running smoothly and safely. Possible causes for your furnace making a knocking noise…<\/p>\n","protected":false},"author":1,"featured_media":3523,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":{"0":"post-3519","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-heating"},"yoast_head":"\n1. Metal Duct Expansion and Contraction<\/h2>\n
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2. Loose Air Filtration Cabinets<\/h2>\n
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3. Blower Motor Issues<\/h2>\n
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4. Ductwork Obstructions<\/h2>\n
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5. Improper Duct Installation<\/h2>\n
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6. High Air Pressure in Ducts<\/h2>\n
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7. When to Call a Professional?<\/h2>\n
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8. Conclusion<\/h2>\n