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 pins 1 (red) and 2 (blue)
at connector X1 on the PCB to a suitable earth point.
Voltage should be approximately 240V AC.
Note:
This connection provides permanent 240V to both fan and pump.