Fixes to Try
Check Wattage Make sure your generator or inverter can handle your fridge's starting wattage (higher than the running wattage listed on the label).
Upgrade Power:
Consider an inverter generator or a model designed for electronics.
If you're using an inverter, go for a larger one with more power.
Hard Start Kit: This can give your fridge's compressor the extra push it needs.
Check Wirin : Use thick extension cords and proper grounding to avoid voltage drop.
Call a Pro If you're still stuck, an electrician can test your setup and diagnose any problems.
Knowing your fridge model and your generator/inverter's specs may help you narrow things down!