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

    Dec 3, 2014, 08:36 AM
    Trane model tue100a960kz system lockout code 2 after thermostat turns off blower stay
    Every day or so after the thermostat stop calling for heat the furnace combustion shuts down but the blower which should time out stays on and it sets a system lockout code 2. Reset restores operation for sometime days or maybe only a few cycles. John Binns e-mail [email protected]
    MWRyland's Avatar
    MWRyland Posts: 24, Reputation: 2
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    #2

    Dec 8, 2014, 08:03 AM
    Try checking your air filter and make sure all your vents are open. I was having the same problem with my Rheem unit. If there is not enough air flow it will back flow into the furnace which will cause the system to lockout.
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