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My carrier ac unit makes a humming noise when the heater is on and when the ac is on there is a burning smell coming out of the vents need some assistance please

Post created: 2013-05-12 Type of Equipment: Air Conditioner Views: 495

This question was created on the page: https://www.furnacecompare.com/air-conditioners/carrier/reviews/.

I had this ac unit for 12 years i havent done anything yet to fix concern and i notice the humming noise when the heater is on like 2 years ago n when ac is 2 days buring smell coming out of vents

On 2013-05-13 JB wrote:

If you are getting a burning smell with the AC on you should turn the system off immediately by cutting power to it. You can do this at the circuit breaker or there should be a shut off switch.

It could be the blower motor, a belt (if your compressor has one) that is slipping and burning, or something else. Either way the fumes are very likely not safe to breath and you should bring in a certified HVAC tech to diagnose and fix the problem.

To keep legal happy, let me just say that I am not an HVAC contractor, and you should never even look at your furnace without having a qualified, liability accepting HVAC contractor present.  To keep sales happy, let me just say that you can find an HVAC contractor that's happy to take your money here: http://www.furnacecompare.com/perl/find_contractors.pl.

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