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Furnace is Loud

The 3 most common part(s) or condition(s) which cause the symptom Furnace is loud are listed below starting with the most likely. Check or test each item and watch any available videos.


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To see parts for your furnace, you need to enter your model number on the right. The system will then display parts that are associated with your furnace.

Blower Wheel

If the furnace is loud the blower wheel on the fan motor that blows air through the house might be bad. The blower wheel is attached to the blower motor shaft with a set screw. Make sure the set screw had not come loose causing the blower wheel to slip on the motor shaft. Check the wheel itself for damage like a separated center hub or broken fins. If damaged replace.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

To see parts for your furnace, you need to enter your model number on the right. The system will then display parts that are associated with your furnace.

Blower Motor

If the furnace is loud the blower motor might be bad. The motor has bearings built into it that can fail and get loud during motor operation. Some motors will have oil ports for turbine oil but in most cases when the motor is loud from worn bearings the motor will need to be replaced.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

To see parts for your furnace, you need to enter your model number on the right. The system will then display parts that are associated with your furnace.

Draft Inducer Motor

If the furnace is loud the draft inducer motor might be bad. The motor has bearings built into it that can fail and get loud during motor operation. When the draft inducer motor is loud from worn bearings the motor will need to be replaced.

Enter your model number for the best repair help results:


What is a model number, and where do I find it?

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