That makes sense, you do not want bubbles and it surely will overflow. But why should they burn out because of that? There is lower resistance etc. and cooling is still mostly working. I really see no way how it damages the machine. I repaired a bunch before, so this is not coming from nowhere. So I googled and found this: https://robertbair.com/blog/i-accidentally-put-dish-soap-dishwasher-now-what And that makes total sense. It only damages if the soap “crust” builds up too much. That is not a quick thing to happen. Otherwise it is all about the mess or makes.