Agree with Tanglefoot69, mine is the exact same temp wise and the fan control must be variable, cause the fan is super slow/quiet most of the time. If I run the A/C, the fan runs constant and temps stays around 178.2 seater Expedition 150 miles and can't say I have ever known the fan to kick on.
What temp should it come on ?
Seen temps from 180 to 205 and no fan.