Try to bypass the control syst before you yank the furnace. If it runs normal when you connect and disconnect the two blue wires then furnace is ok.
The wires are coming out the top front oh side as you look at it from outside
The wires connected to them are not likely blue. Just keep track. Shouldn't matter though. Just a switch
In your case if the furnace stops with a normal shutdown then furnace is good.
Should take 5 min to check.
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