Ac/heat problems

[Hayden]

For the past couple months my a/c and heat has been making a "humming" noise and not the normal one. Kinda hard to describe and doesnt show up on video that well. But today i smelt a slight burnt scent and dont feel ok running the heat bc i dont want anything to melt or burn. Its getting cold and i need the heat, but dont know where to start as far as fully diagnosing the problem. It gets louder as a turn the speed up.

Any help or input would be appreciated!

 

[poncho1965]

Sounds like the fan resistor, mine has fried twice.... I never noticed humming, just a burning smell


Mike

 

[Hayden]

This is the sound, picked up better when i put my phone under the glove boxhttps://vimeo.com/111320440

Sounds terrible..

Edit: the noise is louder when i turn recirculate on if that helps any

 

[cbetts]

Something caught in the fan? What does the burning smell like? Elecrical, wood?

 

[Hayden]

I would say electrical but its a really faint smell. How exactly do i get to the fan. Thanks for the help guys!