Furnace clunking - Link to video


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Old 12-03-15, 03:28 PM
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Furnace clunking on startup - Link to video

Greetings pros, I need your help.

Link to video of issue at bottom. Furnace having issue starting up. Clunking. Any suggestions as to what problem is?

Thanks for help.

https://goo.gl/photos/6rTkz6ZwwPswBYTb6
 
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Old 12-03-15, 03:37 PM
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Welcome to the forums.

That noise is the blower fan starting up. It could be a bad capacitor although it sounds like a tired motor. Remove the bottom blower access cover and give it a look/see.

Turn the service switch off to the furnace and try turning the blower by hand.
 
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Old 12-03-15, 03:45 PM
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Sounds like the blower fan is hitting the blower housing or something has contacted the blower fan. The blower housing should be accessible from the opposite side of the furnace in the picture. There should be a removeable panel. With the panel removed and power off, spin the blower fan by hand to see if you can duplicate the noise. If yes, fix the problem. If no. look for something loose or broken. Good luck
 
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Old 12-03-15, 04:41 PM
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The blower housing should be accessible from the opposite side of the furnace in the picture. There should be a removeable panel.
I must be looking at a different video. I see the door.. with a handle.. right on the front of the furnace.

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