Set Appliance State:

Mains Power Off
On/Off Switch OFF
Set Multimeter to AC Volts Set meter to measure AC Volts
CH Demand
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Is there mains voltage to the pump from the external controls?
Note:
The external programmer/clock is not an integral part of the appliance therefore exact test points cannot be given. Refer to manufacturer's literature for more information.