Refrigerators use compressors which often require 5x or greater power to start. You will need to check your generator's peak output to confirm that it can start

Refrigerators use compressors which often require 5x or greater power to start. You will need to check your generator's peak output to confirm that it can start the refrigerator's compressor. In my experience only relatively small refrigerators can be powered from 1.5kW / 2kW units.