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 running from X8 to the pressure sensor as below:
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)
Also inspect the harness for good 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)
Also inspect the harness for good general condition.
Isolate as per TOPs P4
and refit as necessary