No, these are not the same thing and your unit does not have a thermocouple it uses direct spark.
If you could tell me exactly what it does. When you call for heat will the draft inducer run? do you hear or see spark? do you believe gas is coming out and not igniting?
Look on the board for a blinking light then count the blinks and look on the back panel for the code. let me know what you find.
Ok if the unit sparks we know the draft inducer works. This is the motor near the burners. If you smell gas it sounds like the burners are plugged or the igniter is not aligned correctly. Can you take the burners out and clean them with a brush or compressed air?
Then take the ignitor out ( has the spark wire on it) and make sure it is clean. Also, on the other side of the burners is a flame sensor ( look like a thin metal rod) clean that as well with a scotch brite pad.
Put it back to gether and tell me if this works.
One last thing the draft inducer vents out the side of the unit make sure nothing got in there like a bird or something.
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There is but i am not sure if you want to do this. To verify the spark you need a wire and an insulated pair of pliers. Then you screw on end of the wire to a screw on the cabinet. With the pliers hold the wire about 1/4 inch away from the tip of the transformer( where the spark wire went to the board) then look for a spark across it. If it sparks you board is good is it does not the board may have failed.
You can find them on line at places like HVACparts.com or just goggle Furnace parts. You will need your model and serial number.
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