Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to AC Volts Set meter to measure AC Volts
Gain access to PCB (use Insulation Mat as required)
Remove electrical connector to diverter valve motor
No demand
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Measure the voltage across pins 10,11,12 &13 in turn of connector LV2 to suitable earth connection.
Voltage should be seen to fluctuate between 10 Vac to 11 Vac, voltage will only be present for approximately 20 seconds after power is reinstated,
Repeat test as required till all pins have been measured.