Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Use insulation mat as required
WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure
Mains Power On

Measurement:

Please remember to use the end of your voltstick to gently press the SW1 and SW2 buttons.
Is the thermal store temperature greater than 68 degrees C?
To establish thermal store temperature press SW2 once
(display on PCB should show current store temperature in degrees C).
If display is not illuminated use a thermometer.
Note:
If using a thermometer:
Isolate Mains Power to appliance as per TOP's P4

Remove the thermal store sensor and place thermometer in sensor pocket.