Set Appliance State:

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

Observation:

Fault codes E12 - E15 - E23 relate to incorrect hydraulic configuration, there is inconsistency between the settings and signals received from the PCB.
Check the value of the 'A0' parameter & correct if required, refer to table below, for parameter settings guidance click HERE.