RESISTANCE OUTDOOR SENSOR

Isolate Mains Power to appliance as per TOPs P4

Set Multimeter to Resistance

Gain access to main terminal connections
Disconnect low voltage plug at the terminal block (top connection)

Measure the resistance beween terminals 5 and 6 at the disconnected plug.

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.