Set Appliance State:

Turn Hot Water Tap On
Isolate Mains Power to appliance as per TOPs P4
Attach temperature clamp as indicated
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 your voltstick to gently press the SW1 and SW2 buttons.

Set PCB to check for DHW sensor temperature by pressing the SW2 button three times.
Check the temperature that the PCB displays is approximately the same as the readings from the attached clamp.