I think the machine - you do not say make or model - is trying to tell you something - it is probably saying that it has a problem with either the water inlet or the water outlet.
If there's a noticeable pond of water in the machine's sump then you'll know it's a drain issue.
If there's no puddle of water then it may well be a water inlet problem - tap turned off - kinked supply hose - defective inlet valve.
It's possible that the control system is faulty and is showing a false error but not very likely.
If you have the confidence and a tool kit to make a repair then go ahead - otherwise you may do best to call in a specialist engineer.
Good luck...
Alex Salmond, September 2014