Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to DC Volts Set meter to measure DC Volts
Remove the DC connector from the pump
Ensure NO demand
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Test 1:
Within the first 15 seconds of turning the power on measure the DC voltage between pin 11 (black) and pin 12 (white) on connector LV2.
Expect a voltage of less than 1.5 VDC.
Test 2:
Measure the DC voltage between the pin 11 (black) and pin 13 (purple).
Expect approximately 6 VDC
Are the voltages measured as expected?