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

    Aug 10, 2014, 01:48 PM
    Honeywell RTH2300 replacing old honeywell non-programmable. I have a heat pump. Heat
    I needed a programmable thermostat and replaced an older (not that old) Honeywell model with the new RTH2300. It came with Y, W, R, Blue, and G wires. I hooked all the wires up (manual said hook up Blue but not O, which I don't have, for heat pump and put a jumper between Y and W. I've done that, but the cool setting still pumps out heat. Any ideas?
    bitters's Avatar
    bitters Posts: 348, Reputation: 12
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    #2

    Aug 10, 2014, 03:30 PM
    Make sure the two jumpers on the back of stat are in the correct position. JP 1 is heat control and JP 2 is for the reversing valve in the outside unit. Steps 6 and 7 in the quick guide.
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