Set Appliance State:

Mains Power Off
Heating Switch OFF
(Both on control panel)
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Observe the Mains Switch neon.
Does it light up when on/off switch is switched ON (down)?
[In later tests, if lockout occurs, please reset before carrying out the next test.]