What does fault code F07 mean for a Hotpoint Ultima WF860 washing machine?

Can anyone help. We are getting error code F07 on our Hotpoint Ultima WF860 washing maching. The machine is filling up with water and then it beeps and then displays END, and then the F-07 code comes up. Then is starts to drain until we turn off at the mains, even after all the apparent water within the machine has dispersed.
Also is there somewhere where I can get these error codes listed for future reference.