Set Appliance State:

Mains Power Off
Ensure no demands
Ensure appliance is cool
ECO mode ON (ECO on display)
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

This appliances incorporates a two minute fan and pump purge period, as soon as this completes ensure the appliance is in ECO mode (ECO in display) press the power button briefly to toggle on and off.
During the fan and pump purge period the fan will run continuously and the pump will pulse on and off for 5 seconds at a time FH will be displayed. When the purge period ends FH will leave the display, the fan should stop running and the pump should no longer pulse. (It can take up to 20 seconds for the purge period to start after power is switched on)
If a fault code is shown choose that option below, failure to do so will lead to misdiagnosis.