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    joe32659's Avatar
    joe32659 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 16, 2009, 07:52 PM
    Heating& airconditioning
    Lite on service board blinks 4 times telling me I have an open limit switch but have 4 on this unit how do I check all for bad one? Unit fires up but blower fan doesn't turn on
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 16, 2009, 07:56 PM
    Use a meter and see which one is open
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