Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove connector from gas valve
Pull connector X3 back slightly to expose test pins
Pull connector X3 back slightly to expose test pins
Measurement:
Check for continuity (zero resistance) of the blue and black wires
running from the disconnected plug to X3 on the PCB.
Blue = X3 Pin 2
Black = X3 Pin 3.
Inspect harness and connectors for good overall condition.
running from the disconnected plug to X3 on the PCB.
Blue = X3 Pin 2
Black = X3 Pin 3.
Inspect harness and connectors for good overall condition.
Isolate as per TOPs P4
and refit as necessary