Set Appliance State:

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

Observation:

If the fault code has cleared by turning the power off / on then select "Fault code not present". This will investigate reasons why the fault code may have occurred.
If the fault code reoccurs select "Fault code present".
Information:
When F7 fault code occurs on this appliance the only way to reset it is to turn mains power OFF then ON, using the reset button will have no effect.