According to your drawing your switch is a 207/194. My understanding of how the switches worked is that the circuit closes (fan comes on) at the higher temperature (207) and stays on until it reaches the lower temperature (194). Then the engine warms up to 207 and the process starts over.
If it came on at the lower temp (194), the fan would come on, temps would drop to 193 and the fan would shut off. Then 3 seconds later the temp would hit 194 again and the fan would come on. Yo-Yo fan.
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