Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to AC Volts 
Observation:
Apply heating demand.
After approximately 13 seconds voltage should be present at test points. Measure the voltage across the violet leads pin 4 and pin 9 on connector marked J6 on the PCB.
After approximately 13 seconds voltage should be present at test points. Measure the voltage across the violet leads pin 4 and pin 9 on connector marked J6 on the PCB.
Isolate as per TOPs P4
and refit as necessary