Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Disconnect connector X18 from the PCB
(place in a safe position)
(place in a safe position)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Measure the voltage between pin 5 of connector
X18 (pump connector) on the PCB and a suitable earth.
Monitor the multimeter, a small AC voltage should be present,
make a note of the voltage.
A few seconds after the power is switched on this should drop by approximately 0.5 VAC or greater for 5 seconds as the PCB tries to run the pump, before returning to the original voltage measured.
This should happen 4 more times as the PCB repeatedly tries to run the pump before lockout occurs.
Note: If the appliance locks out the voltage will stop fluctuating and will need to be reset to complete the test.
X18 (pump connector) on the PCB and a suitable earth.
Monitor the multimeter, a small AC voltage should be present,
make a note of the voltage.
A few seconds after the power is switched on this should drop by approximately 0.5 VAC or greater for 5 seconds as the PCB tries to run the pump, before returning to the original voltage measured.
This should happen 4 more times as the PCB repeatedly tries to run the pump before lockout occurs.
Note: If the appliance locks out the voltage will stop fluctuating and will need to be reset to complete the test.
Isolate as per TOPs P4
and refit as necessary