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)
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Measure the voltage between in 5 (brown) and pin 6 (blue) at HV1 on the PCB within 13 seconds of powering on the appliance and during its self-check.
Mains voltage expected.
If it is not possible to turn the power on to the appliance and measure the voltage within 13s (for example distant fused spur) then it can be activated by entering the installer mode and accessing level 6 - t3.
(click here for information on how to do this)
Set to ON to activate the pump then carry out the test.
Is mains voltage present?
Note:
When the result is confirmed remember to set the test menu for the pump back to OFF.