Set Appliance State:

WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Enter the appliances parameter setting mode, click here for a guide on how to do this.
Check parameter P01, this is the appliance low water protection setting, this can change if the appliance experiences electrical supply fluctuations.
On this appliance the parameter P01 should be set to "0", if set to a different value it should be changed to "0"
Once the parameter has been set correctly exit the parameter setting mode and see if the F47 fault code has cleared.