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

    Sep 15, 2014, 06:23 PM
    Why does my furnace run when the thermostat is off?
    When I turn on my furnace it kicks on... heats up and runs for a long time... when it finally shuts off... it will turn back on blowing cold air and keep doing that... I shut if off at the thermostat and it still does it? We have to take the door off the furnace to shut it off...
    bitters's Avatar
    bitters Posts: 348, Reputation: 12
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    #2

    Sep 16, 2014, 10:18 AM
    Is this an electric furnace. If so you could have a bad sequencer. Make and model number?
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