Forum Discussion
Chris_Bryant
Jun 10, 2013Explorer II
Does your thermostat look like this one?

If so, go to the roof unit and disconnect the white thermostat wire marked "W"- this should shut the furnace down. If that doesn't work, disconnecting one of the blue/white stripe wires will.

If so, go to the roof unit and disconnect the white thermostat wire marked "W"- this should shut the furnace down. If that doesn't work, disconnecting one of the blue/white stripe wires will.
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