If you have a blinking red light on the generator, it's presumably not a 12V fuse since it is receiving power enough to blink the light. If you post a question in the tech issues forum with the exact generator model and a description of the blinks (assuming it might be some sort of an error code, e.g. three blinks then two blinks, or something like that), you'll be rather more likely to get help from people who really know what's going on.
It would be worthwhile to check that the oil level in the generator is full. Some have very sensitive oil level sensors.