Questions about Air conditioning systems - other Heating and ventilation questions should use 'hvac'

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4
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2answers
2k views

What's wrong with my intermittent air conditioner?

When the weather first starting getting warm last month, I turned on my A/C and it didn't work. The air coming out of the vents was warm and humid. A few days later it started working just fine and ...
6
votes
1answer
1k views

Heater smells like sulfur

I drive a 2006 Toyota Sienna. When driving with the heater on I often smell sulfur. This is more common when I am driving up a hill, but if I turn the heater off, the smell goes away. What causes this ...