You should have a switch the door hits to cycle the light on and off. Open the door and press the switch with your finger. If the light stays on, your switch has failed
If that fan stopped your compressor overheated, shut off on thermal overload. Carefully cool compressor with water hose and restart. If the big copper is cold ,small copper warm, compressor is running. Check capacitor on compressor If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79