Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove connector X2 from the PCB
Measurement:
Measure the resistance between pin 18 and pin 11 on connector X2.
The resistance measured is dependent on the appliance you are working on and should conform approximately to the table below:
Is the resistance measured as expected?
The resistance measured is dependent on the appliance you are working on and should conform approximately to the table below:
| Appliance | Resistance |
| 824/2 E | 2.5 kOhms | 828/2 E | 2 kOhms | 835 E | 4.3 kOhms |
Is the resistance measured as expected?
Isolate as per TOPs P4
and refit as necessary