Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
CH Demand
Click here for important information regarding CH operation
CH temperature control set to MAX
Release the securing clip and remove the diverter motor
Note.
The diverter motor can be removed without the need for draining
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Observation:

Allow the 4 minute pump purge to complete.
Observe the position of the diverter motor spindle.
Is it in the fully retracted position ?