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    plant2s's Avatar
    plant2s Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 1, 2009, 10:46 AM
    Does the shaft length on the limit switch make a difference
    I replaced my old limit switch in which the shaft or spring was twelve inches. The new one was eight inches because there were no longer ones. Would difference in length make a difference ?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Dec 1, 2009, 12:59 PM
    Yes it can make a difference especially if you are taklking about a fan and limit control. It is called the insertion length and the furnace was designed to use what came from the factory as far as length goes. The longer ones are available.
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