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

    Mar 8, 2007, 07:22 AM
    Continuity of pressure switch
    I am trying to determine if my pressure switch is bad. (Carrier Weathermaker 8000) On a good switch, should the continuity between the posts test open or closed?
    THanks.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
     
    #2

    Mar 8, 2007, 11:20 AM
    Open and closes on pressure increase. It is kind of like a safety tp prove the combustion blower is working. Is the small blower fan working?

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