Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Remove connector X19 from the PCB
Measurement:
Measure for resistance across connections of X19 as per table below;
| Isolate Mains Power to appliance as per TOPs P4 |
| Black test probe | Red test probe | Resistance (approximately) |
| Pin 1 | Pin 2 | 8.5kΩ or open circuit |
| Pin 1 | Pin 3 | 8.5kΩ or open circuit |
Isolate as per TOPs P4
and refit as necessary