Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Turn Hot Water Tap On
Boiler On
Remove Pump inspection cover
Take adequate precautions to ensure any water released is safely contained
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Check that pump is rotating by observing shaft rotation or inserting a screwdriver.
Note: A positive verification of pump rotation is required.