Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
Gain access to PCB (use Insulation Mat as required)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
After approximately 10 seconds measure the DC voltage between each of the wires listed in the table below on connector X7 to a suitable earth point, voltages should conform approximately to the table below:
| Pin | DC Volts | 1 | 22 |
| 2 | 22 |
| 3 | 22 |
| 4 | 22 |
| 5 | 22 |
| 6 | 22 |
