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    malespina's Avatar
    malespina Posts: 1, Reputation: 1
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    #1

    Nov 12, 2009, 02:15 PM
    Hooking up a nordyne circuit board on a heat pump
    I have a nordyne heat pump model E2cho15ha. I had a technician hook up the board for the a/c over the summer but he never hooked up the heat. On the board there is a place for cooling and a place for heat, but when I put the orange wire on the heat my breaker pops and no heat. I have tried to obtain a diagram but no luck. Can you help me?
    T-Top's Avatar
    T-Top Posts: 1,871, Reputation: 100
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    #2

    Nov 12, 2009, 07:28 PM
    It may help if you give the board part number your trying to install. If the breaker is tripping as soon as you turn it on--- you probably took out the board again.
    KC13's Avatar
    KC13 Posts: 2,556, Reputation: 99
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    #3

    Nov 12, 2009, 07:42 PM
    Wire colors and terminal letter designations should match up at the thermostat, indoor unit, and outdoor unit. "O" circuit may or may not be directly connected to the indoor unit.
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