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    JanosX's Avatar
    JanosX Posts: 3, Reputation: 1
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    #1

    Dec 4, 2009, 08:07 PM
    240v 6-30p
    So to this point I've read just about everything on 240v, 3 prong wiring and I'm still stuck.

    I bought a 240v, 4800w 20amp garage heater. I added the 30amp circuit (noted on the box as the required circuit), ran the 10/2 wire (it happens to be 10 CU 2, if that makes a difference, I was told it didn't), connected the 6-30p outlet, tested L1-ground, and L2-ground, each at 120v and... the heater doesn't work.

    I'm sure I'm missing something tremendously simple, but it's completely evading me.
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #2

    Dec 4, 2009, 08:10 PM
    Exact brand and model of unit

    One quick check you can do. Use a meter and check between the two legs of 110 volts. Jump across the two legs of 110 volts and see if you get 220 volts.
    JanosX's Avatar
    JanosX Posts: 3, Reputation: 1
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    #3

    Dec 4, 2009, 08:11 PM

    It's a dimplex dch-4831a
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
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    #4

    Dec 4, 2009, 08:32 PM
    Did you

    Jump across the two legs of 110 volts and see if you get 220 volts.
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    JanosX Posts: 3, Reputation: 1
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    #5

    Dec 4, 2009, 08:40 PM
    Thanks hvac. I just got back from my panel, and adjusted the circuit . I had it in the wrong position only using one of the lines... that solved it.
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    hvac1000 Posts: 14,540, Reputation: 435
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    #6

    Dec 4, 2009, 09:12 PM
    That does happen. You just cannot get 220 when using the same phase side. Glad you got it going.
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