I've been working on this for awhile.
Ok here's what I have done so far:
It has a new genesis control with new harness.
Tested all defrost wiring from control to defrost heater, defrost thermostat etc.
Put in defrost mode- no power coming out of connector P1-7 brown wire which should be defrost power
Was able to jump P1-1 to P1-7 with connector unplugged from board and defrost heater comes on.
But it will not defrost in manual mode or by itself.
Any help would be appreciated...