No problem! That's what these forums are largely for...sharing your experiences with others so you don't have to learn them firsthand yourself!
I had a time when I noticed the converter fan wasn't coming on. Almost immediately after I said to myself "that fan isn't coming on...", the lights in the trailer went dim. I forget exactly what was wrong, but we wound up fixing it the next morning. So...if the fan is NOT coming on and you're using your lights/appliances, there's a chance something may be wrong.