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    ping_11's Avatar
    ping_11 Posts: 1, Reputation: 1
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    #1

    Apr 28, 2014, 01:20 PM
    Lennox gas pack fan running non stop - no thermostats output
    I have a Lennox gas pack - last week the fan started running non stop and the thermostat went blank. It doesn't heat or cool now - just blows air. Any thoughts?
    Grady White's Avatar
    Grady White Posts: 1,417, Reputation: 59
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    #2

    Apr 28, 2014, 05:11 PM
    There could be a number of causes but I would start by checking for an open limit. An open limit shouldn't normally effect the thermostat display but if the limit breaks "common" & your stat is powered from the furnace, it's possible.
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