ac398

Ok well I just bought a 91 Accord EX manual trans. Well it has 2 cooling fans and they dont come on when the car is running even if I turn on the AC which should at least switch on the AC fan. However the fans do come on sometimes when I turn off the car and run for maybe 5 min. which Ive read is normal. Also My temperature gauge inside the car is stuck on 40-50% all the time. I haven't turned on my car in a full 24 hours and dead cold the gauge is still at 40-50%. What are the steps I should take to diagnose these 2 issues?
I know the car is not overheating, but after being ran for a while sometimes when I turn it off a little bit of steam will start coming from the overflow tank, not a lot like its overheating just a little and theres no gurgling or coolant being pushed back into the overflow. I know I dont have a bad head gasket because I block tested it after I bought it with the radiator full and the test was good ( fluid stayed blue didnt turn yellow).

Also on a side note the guy I bought the car from made a joke about how you can disconnect something and it will always make the temperature gauge read normal, which is what I think the guy did but I dont know why as its not overheating, motor sounds great, and head gasket is fine. I checked after the guy had been driving it all day, thn I bought it and drove 45 min home and block tested it after that, so HG is good. Sorry its a little long winded but I think I gave you all the info I can think youll need of the top of my head. This is my first time with a Honda Im more experienced with Chevys