Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Disconnect connector X8 from the PCB and the connector from the low water pressure sensor
Measurement:
Measure the resistance across the each of the wires in the disconnected harness from the pressure sensor end to the PCB end in turn.
Orange = X8 pin 11
Black = X8 pin 7
Red = X8 pin 6
(Pin 11 of X8 is to the far right when fitted to the PCB)
Inspect the leads general condition.
Orange = X8 pin 11
Black = X8 pin 7
Red = X8 pin 6
(Pin 11 of X8 is to the far right when fitted to the PCB)
Inspect the leads general condition.
Isolate as per TOPs P4
and refit as necessary