Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove connector X2 from the PCB
Remove pump speed control connector from Pump
Remove pump speed control connector from Pump
Measurement:
Measure the resistance of each of the wires in the pump
speed control harness as described below.
Pin 10 on X2 to pin 2 on pump connector.
Pin 20 on X2 to pin 3 on pump connector.
Pin 19 on X2 to pin 1 on pump connector.
Expect continuity / zero resistance on each test.
Also visually inspect the condition of the harness.
Are the resistances as expected and is the harness
in good condition?
speed control harness as described below.
Pin 10 on X2 to pin 2 on pump connector.
Pin 20 on X2 to pin 3 on pump connector.
Pin 19 on X2 to pin 1 on pump connector.
Expect continuity / zero resistance on each test.
Also visually inspect the condition of the harness.
Are the resistances as expected and is the harness
in good condition?
Isolate as per TOPs P4
and refit as necessary