So I took my apex down rewored everything this night to look nice. Plugged everything in, it all looks great...Go to look at my temp and it says 121. I have tried calibrating it, changing the units to celcius and back to fareheit. I have unplgged it and plugged it back in. Nothing is working. Due to all the setting I have set up all my lights have turned off. I am not sure what to do next. I do not know why this is doing this. Please help I don't want to cook or freeze my tank.