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.