what does the fault code 1 mean on Bosch washer wfk2200?

My machine is washing fine on the main wash but wont progress to rinse but seems to drain away main wash water, just goes to beep noise, flashes a 1 and spin light is on. I can move it on by resetting buttons manually skipping forward and it spins but water is leaking under the machine after rinse part.
Any ideas anyone- havent got a manual

Thanks

carl
March 2010