Trouble shooting 1 for chest freezer

Problem: Red light is off

I fwith power supply.
Reason:
- Input control circut is faulty
- Plug and socket are not contacted well
- Fuse burn out

Inspection item to identify reason:-
- Check voltage
- Check if plug loose
- Check fuse

Counter-measurement:
- Checkwith multi-meter
- Repair or replace socket
- Replace fuse