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Question DetailsAsked on 2/17/2016

Strange Sounds

I have a new furnace as of this summer. It just started making a strange sound last night when it was running (almost sounded like a washer on a spin cycle) and when it's shutting down (almost makes a puttering sounds). It seems to be related to the fan... Any ideas of the issue? How much should I expect this will cost? Would this be covered under a warranty?

Thank you in advance!!!

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2 Answers


It definently should be under warranty. Call the installing contractor. Try not to use the unit until it is examined. More problems could arise.

Source: Poppy Ross

Answered 4 years ago by PoppyRoss


If you have a boiler, sound like a pump issue.

If a forced air furnace (air ducts), sounds like either there is something caught in the fan (maybe a dust clump) or a fan/motor bearing is going out. Or if belt-driven fan, the belt might be starting to split or fray.

Other alternative with forced air furnace - if you have a humidifier which is the "squirrel cage" type with an absorbent element wheel that turns slowly and picks up the water, the element might have sagged or torn and be flopping around - those are an item that are supposed to be replaced periodically anyway.

If a pump or bearing failure should be under warranty (assuming normal 1 year warranty) - might be covered by installer's warranty even, which might cover labor as well as parts.

If dust clump or such on the fan or loose or slumping humidifier element that is your responsibility - and something you may be able to handle yourself - being SURE the power to the entire unit is off before opening it up.

Otherwise, Heating and A/C would be your Search the List category for a technician, and cost likely about $75-150 service call if just something caught in the fan or slumping humidifier element, to probably generally about double to maybe triple that range if pump or fan motor needs replacement due to shot bearings - very rough ballpark, because some brands have very expensive parts and some require quite a bit of work to get to the fan, others are cheap and easy.

Answered 4 years ago by LCD

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