Also, my experience with using front load washers for years has been they do NOT like liquid detergents unless you add it directly to the clothes in the drum.
The liquid in the dispenser never gets fully rinsed out of the hose that goes to the drum which can cause your clothes to smell and it builds up in the hoses.
If you want to use the dispenser use powder detergent.
I've been doing it for years with never any issues.
Just my 2 cents.