Set Appliance State:

Mains Power Off
Selector switch set to OFF
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

At power up (self-test) the fan will start and run for 4 minutes, approximately 5 seconds after the fan starts the pump will run for approximately 30 seconds.
Does the fan and pump run at power up (self-test)?
Note.
It may be necessary to power Off and On several times to complete this test.