Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Disconnect connector X6b from the PCB
Measurement:
Measure for resistance across the actuator at connector X6b as per table below:
RESISTANCE DIVERTER VALVE ACTUATOR AND HARNESS
| Black test probe | Red test probe | Resistance |
| Pin 3 (Blue) | Pin 1 (Black) | 9.8 kOhms or open circuit |
| Pin 3 (Blue) | Pin 2 (Brown) | 9.8 kOhms or open circuit |
1
7
Note:
If a white board is fitted connector is in same location but is called X6 instead of X6b.
If a white board is fitted connector is in same location but is called X6 instead of X6b.
Isolate as per TOPs P4
and refit as necessary