If I have the thermostat connected the light comes on, If I disconnect the supply to the thermostat, ie, the red and brown leads from the joint box on the compressor, then no light comes on as there is no supply to it. I am convinced that I have proved that the thermostat section between pins 3 and 4 never closes. The contact between pin 3 (the lamp) and 6 is OK. If I short out The red and brown the compressor runs after making sure the defrost timer is possitive. My problem is how to istall the tube on the new thermostat.
PyrusBoy, January 2011