There shouldn't be much suds. Dishwashing soap doesn't suds up. Perhaps you have residue from the soap left when you washed off the dishes before you put the dishes in the dishwasher? Just my two cents. Best of luck!

I had the same issue. It turned out that food particles had jammed the (flood) float. The float, when the water reaches a certain height stops the water flow. If the float stick the water flow doesn't stop. A good way to check for that is to see how deep the water is at the float housing. If it is over two inches or so it could be the float is jammed or the float switch isn't working. My experience tells me that it will rarely be the float switch, that type of switch rarely fails.