RESISTANCE OUTDOOR SENSOR

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Remove the outdoor temperature sensor connector from the PCB (dark blue)

Measure the resistance between the 2 pins of the connector.
Is the resistance measured as expected?

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.