Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Disconnect plug from flow switch
Disconnect X13 from the PCB
Disconnect X13 from the PCB
Measurement:
Check for continuity (zero resistance) on both of
the wires running from the water pressure switch
to pins 1 and 2 on X13 at the PCB.
Inspect the harness and plugs for damage
and good overall condition.
Note:
Colour of wires may change but test points remain the same.
the wires running from the water pressure switch
to pins 1 and 2 on X13 at the PCB.
Inspect the harness and plugs for damage
and good overall condition.
Note:
Colour of wires may change but test points remain the same.
Isolate as per TOPs P4
and refit as necessary