Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Turn Hot Water Tap On
Gain access to PCB (use Insulation Mat as required)
Attach pressure gauge to gas valve pressure outlet test point
Turn dip switch 3 at bottom left of the
control PCB to the "off" (down) position
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

When the burner ignites is the burner pressure approximately 6mb (NG)?
(13mb for Propane, 12mb for Butane)
Notes:
1. When pressure gauge is removed the pressure test point
should be tightened and checked for gas tightness.
2. Put dip switch 3 back into "on" (up) position after test.