GE Fridge: PSS26SGPA SS Model

Question

I couldn't find the GE model: PSS26SGPA SS.My fridge is not cold enough. I tried the folllowing1. Change *Freezer temperature* to -1 and it automatically jumps to 142. Change *Refridgerator temperature* to 37degrees(recommended) and it automatically jumps to 44Help!Kind Regards.