Oe code on display

Hello
The OE error is Possible :
1) connections for the Overflow Sensor connector.
2) Check whether the Inlet Valve operates normally.
Use t1 service inspection mode.
3) 3. Check whether water is supplied (even small
amounts) in the intervals when the Inlet Valve is not operating.
See manual link below and go to 4-8 . Matt Ace technician