1grits

Hi, I bought a house with a hot tub. Pictures of hot tub attached. I am unable to find a serial or model number. I would like to get a manual to help me figure out the settings so I can get the desired water temp. I know there is a place in the back where I can look for the serial/model number but I can't get to it. I was hoping someone could help me find out what kind the hot tub is so I can get a manual. I'm trying to adjust the temp with the thermostat but I can't get the temp I want. I'm happy to provide more pics if necessary. Thanks for any help!