RESISTANCE PRIMARY THERMISTOR AND HARNESS

Set Multimeter to Resistance

Isolate Mains Power to appliance as per TOPs P4
Gain access to PCB (use insulation mat as necessary)
Disconnect connector M3 from the PCB

Measure the resistance between the two brown wires of connector M3.

Resistances vary with temperature and should conform approximately to the table below:

Note: Clicking on the resistance table will switch between table and graph view.

Note:
Some or all of the pink wires on M3 may not be present depending on the exact model you are working on.