My DW has just started flashing the “Fast 40oc” and “Prewash” LEDs – 2nd and 3rd from left (along with the “Salt” LED albeit slower). I filled up the salt before using it so I know thats not the problem, the water didnt appear to drain but then did once the power was off for a few minutes but I have no idea what the error code means… I have no manual as we were sent the wrong one!