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    bikingmary's Avatar
    bikingmary Posts: 1, Reputation: 1
    New Member

    Sep 5, 2007, 09:35 PM
    Foul smell
    When I turn on the airconditioning my whole house smells like cat urine. And yes I do have cats,but this has only started about 1 month ago,and I have had the cats for 10 years
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert

    Sep 6, 2007, 08:51 AM
    Sounds like you have dirty sock syndrome. That means that bacteria/mold and other nasty stuff is growing on you evaporator coil inside your house. If you have access to or know how to access the coil you can clean it with coil cleaner or 409/fantastic cleaners. The biggest thing is to make sure to kill the stuff then rinse the coil to flush the pan out.

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