possibly mate, but tell me, have you got mounted gauges, or are you just taking it off of your dashboard gauge? reason that I ask, is that I've had radiator problems recently, and it caused my oil temp to shoot up past 130Deg C and the Dash Gauge barely blinked... it should be easy enough to tell if your fans are working, just by taking the car out and warm it up properly, get home and let her stand for 10 minutes, you'll probably find that the fan will either come on or not...
if it doesn't work then it's a case of figureing out if it's the thermostat or the the fan itself which shouldn't be a major challenge....