Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove the connector from the flow turbine
Measurement:
Measure the resistance of pins 5, 6 and 7 at CN9 on the PCB to the wire of corresponding colour at the disconnected plug.
Expect continuity / zero resistance on each test.
Also visually inspect the condition of the harness and its connectors.
Note:
Colour of wires may change
but test points remain the same.
Expect continuity / zero resistance on each test.
Also visually inspect the condition of the harness and its connectors.
Note:
Colour of wires may change
but test points remain the same.
Isolate as per TOPs P4
and refit as necessary