check impella on the pump / check out let hose on the pump check pipe from drum to the pump /take lid off machine and locate the thin pipe from the pressure switch this is at the back or the machine where your main pipe is usually a blueone from the water supply find a thin pipe at the pressure switch and remove it blow down it and replace the thin pipe and re try there might be two thin pipes it goes to the soap draw blow down them both then try it again / hope this helps