Zan ZWF1231W sr 605 E30 fault.

Arrived at this machine to fault code E30, beeping but still able to pump out. Turned the thing on and off, and managed to clear the fault code. Put it on a cottons 40 wash, and after 5 or 6 mins it starts to fill until 3/4 up the door then progress light switches to drain as the machine drains out fully then when empty display time goes to zero and machine turns off. It did this on 3 successive tests, but when the machine was started at rinses (cottons) it progressed through normally. The heater appears to meter ok.

Any idea’s, as I don’t see many Zaunissi’s anymore.