Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Turn Hot Water Tap On
Attach temperature clamp to DHW inlet pipe
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Check if the inlet temperature is above the
DHW temperature set point.
Note:
Set point ranges from 40°C with the DHW temperature control knob at minimum to 60°C at maximum.