Set Appliance State:

Mains Power Off
Gas Off
Turn Hot Water Tap On
(Ensure hot tap is fully on)

Measurement:

Is DHW flow rate adjuster correctly adjusted?
Fully open the flow rate adjuster (turns anti-clockwise) does the flow rate increase to approximately 10.8 ltr/min (2.4 galls/min)?
Note: PASS this test if flow rate does NOT increase. FAIL this test if flow rate increases to 10 ltr/min.