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    jlmccabes's Avatar
    jlmccabes Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Sep 22, 2009, 04:30 AM
    Bryant 383K(?) ALS switch
    Under the filter is a little switch sensor that has a manual reset button in the back. Thinking it is the ALS switch. About size of a quarter, Has two wires coming out, after gong through the switch. Hangs down in the lower air return and wires run back to main unit above. How do I replace it as it is just DIRTY and dusty. Trying hard to find part number unless have to take apart again to find the number..
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Sep 22, 2009, 08:38 AM
    With power off it can just be cleaned with a vacuum cleaner or you could replace but you will need the model number to be sure to get the correct one. This is a critical safety part of the unit if it is what I think it is.

    There are many 383K model units by Bryant. Below is a copy of one of them. A complete model number is always needed if you are to obtain parts.

    http://www.xpedio.carrier.com/idc/gr...lit/om04-3.pdf
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