Set Appliance State:

Mains Power Off
Turn Hot Water Tap On
Run the hot tap until the water is cold
Turn Hot Water Tap Off
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

The warm start facility provides instantaneous hot water from the appliance.
The warm start system is activated by turning the hot water temperature control knob (1) all the way to the right for a short time.
The green indicator light will now illuminate and the appliance should go to ignition and preheat the DHW.
After test switch off the warm start by turning the control knob (1) all the way to the left.