The troubleshooting section of the manual is almost always useless because it only ever covers user error.
My washer threw a drainage error and the manual suggested I blocked the outlet or had done something daft. I looked up the error code online and 90% of the time it was a failed water pump.
I had to replace the water pump. It was an easy job that required less documentation than a lego set for a 5 year old. You just had to know which screws to loosen to get to the pump. Was it documented? Of course not.
I remember Street Fighter II asked for page x, paragraph y word z. Once it even pointed to the German section of the manual where the word “mitten” was used. I found that clever. You can’t just copy the English part.
Also, Leisure Suit Larry did something similar, and they sold more copies of the manual than they sold of the game.