You have to tell us a lot more if your looking for information on this. First of all we need the ML number to be certain we know exactly what machine options you have. Second, tell us what you see, and hear from the machine. As well as what you do to start it. It has a lot of interlocks and sequences to go through before it will start. Like after it fills, the pump should run for a short time. Then the display temp should flash as it heats up before you can open the door and start a wash.
Does the pump do the short test run after fill? If not, then you may have a door switch problem.
Any error messages?