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)
Remove display harness connector CN14 from the main PCB and make safe
Remove display harness connector CN14 from the main PCB and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Measure the DC Voltages between pins 1 to 5 on connector
CN14 on the PCB to pin 5 (blue) on connector CN8.
The voltages should conform approximately to the table below:
CN14 on the PCB to pin 5 (blue) on connector CN8.
The voltages should conform approximately to the table below:
| Connector CN14 | DC Volts | Pin 1 | 5 |
| Pin 2 | 0 |
| Pin 3 | 5 |
| Pin 4 | 0 |
| Pin 5 | 24 |
Isolate as per TOPs P4
and refit as necessary