RESISTANCE CABLE INTERFACE PCB

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Remove ribbon cable at the main PCB

Measurement:

Measure the resistance across each of the wires of the interface cable, between disconnected connector and interface PCB.
(i.e. pin 1 to pin 1 etc)
Expected resistance continuity (zero resistance).

Note.
Make sure that a good connection is made when checking the resistance of the ribbon cable.

Connector to main PCB

Interface PCB