Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Disconnect wires from diverter valve
Unclip and remove diverter valve
Unclip and remove diverter valve
Measurement:
Measure the resistance across the actuator terminals as per table below:
(Numbers are printed on the diverter motor)
Note:
For reassembly correct position of wires is:
White - 1, Black - 2, Red - 3
(Numbers are printed on the diverter motor)
| Black test probe | Red test probe | Resistance |
| 2 | 1 | 5.9kOhms or open circuit |
| 1 | 3 | 5.9kOhms or open circuit |
Note:
For reassembly correct position of wires is:
White - 1, Black - 2, Red - 3
Isolate as per TOPs P4
and refit as necessary