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The thermostat wires attach to the printed circuit card inside the furnace blower compartment, send me a photo of the printed circuit card that shows the thermostat wire connections very clearnly and I will mark it up with trouble shooting directions. You will need a multi meter to check voltage.
You can use the paper clip icon at the top right of the tool bar to attach the photo.
I will be back first thing in the morning to pick up your response.