I have just tried all of that but still no avail.
Iowan has you covered regarding the jumpers & connections but have you verified those jumpers are making connection and the voltages are correct?
Are the ES OK+ and ES OK- LEDs on? If not then:
You should measure +24V with positive on X3:C12 and negative on X3:D12 (pg 24)
You should measure +24V with positive on X3:A4 and negative on X3:B4 (pg 23)
Verify ZB1 by measuring +24V with positive on X5:11 and negative on X5:13 (pg 25)
Let us know what you find.