DIY Home Improvement, Remodeling & Repair Forum > Appliances > HVAC > Wierd smell coming through air vents when AC is on.




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Old 06-28-2014, 12:17 AM  
Emac
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Default Wierd smell coming through air vents when AC is on.

I just noticed the smell a couple of days ago, when we started the AC for the first time since we bought the house. I never noticed any smell in the winter when the heat is on, only now with the AC . My mom said it smells like rubber, i said it smells like something wet or humid!?
Any ideas what could cause the smell?



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Old 06-28-2014, 02:01 AM  
carnuck
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See if it's belt driven. If not, check the filter and anything around the air inlet that could be making the smell.

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Old 06-28-2014, 01:08 PM  
kok328
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change air filter
clean evaporator coils
clean condensate drip pan and line
if the condensate drip line is plugged, water will build up and overflow in the ducts. This will turn to mildew and mold over time and that is most likely the odor your smelling. Especially when this moisture is being blown over dusty evaporator coils that hold moisture.
You may occasionally notice this same odor with your automobile when using your A/C throughout the day.

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