Fridge and freezer not cooling properly
3 days ago the ice maker stopped working. There were no signs of ice. Just water puddles. Eventually the fridge panel started blinking a temperature number. I checked the freezer and found that it was warm. Everything that was frozen thawed out. Me and my father checked the fridge. Coils in the fridge and freezer were not frozen. The fans worked fine. Able to move properly on their own. The condenser coil in the back had little to dirt or dust. Before we checked the fridge I unplugged and plugged the fridge and would eventually give an error 40 c. After what we did the the fridge. Unplug, plug back in, it would give an error 39 c. Both were able to be cleared by hold the fridge and freezer buttons. The 39 c error only comes back if the fridge is disconnected and reconnected. I did check the CPU in the back. It would blink 5 times after reconnecting the fridge to a power outlet. Then change to a steady light, no blinking. We recently called a repair man. He claims it needs gas. Said it would cost 250 for the gas. 350 for the gas and a filter. Sounds like bs but idk. I have yet to decide what to do. Temp for both fridge and freezer are at 60-70 right now.