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Why is my ac/heater making a humming sound and barely working?

(2011 Dodge Nitro)
in Gastonia, NC on December 12, 2012
When I turn on my heater, it makes this humming sound and even when it is on full blast, the heater puts out very little heat. It is the same with the air conditioner.
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Popular Answer
on December 12, 2012
sounds like you might have a blower motor problem
of Greg's Orange Auto on December 12, 2012
should be under factory warranty
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