Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Remove fuse from holder on PCB
Measurement:
Measure resistance of fuse
Resistance should read Short Circuit (zero resistance)
Note:
Older versions of the PCB may not have this fuse fitted
If PCB has no fuse, click resistance as expected
Resistance should read Short Circuit (zero resistance)
Note:
Older versions of the PCB may not have this fuse fitted
If PCB has no fuse, click resistance as expected

Isolate as per TOPs P4
and refit as necessary