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    robertm's Avatar
    robertm Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Sep 30, 2007, 11:29 AM
    a/c compressor makes lights dim
    When my 4 ton central a/c unit turns on, the lights dim for just a second as the unit turns on. The a/c has been serviced and is in good woking order. The main ground from my electrical panel is connected to the ground rod. What can cause this and what if anything can fix it.

    Thanks, Robert
    acetc's Avatar
    acetc Posts: 1,004, Reputation: 79
    Ultra Member
    		  
    #2

    Sep 30, 2007, 01:27 PM
    The compressor draws about four times the rated amp draw on startup, this is what pulls the voltage down momentarily, you could add a start kit to the compressor to help in starting the compressor and see if that does it, good luck, Mike
    Washington1's Avatar
    Washington1 Posts: 798, Reputation: 36
    Senior Member
    		  
    #3

    Sep 30, 2007, 03:24 PM
    It's normal!
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