You guys are confusing me... too many "negative-nots" for my brain this morning sans coffee.
Official mainboard test for compressor not running:
when fans are running (Ge says to check to see if freezer thermistor is within range but fan motor running indicates thermistor isn't the problem) check for 120vac from connector 7 pin 9 (orange wire) to Pin 8 (black wire) If voltage not present, replace board. If voltage present test compressor directly.
Unofficial mainboard test:
Jump pin 11 to pin 8 (keep connector plugged in), if compressor runs, replace board. If not, check compressor/relay etc
Basically what you are testing is to see if the relay is connecting the hot line (pin 11) to the compressor (pin 8) to turn on the compressor (there is a neutral line at the compressor to give it 120vac)
If the relay is working fine and the hot line from pin 11 is being sent to the compressor through pin 8, to verify this all we have to do is check pin 8 with a neutral line at the board and we should get 120vac, right?
And surprise surprise, we have a neutral pin at connector 7 pin 9. Then when we put our meter on this neutral and what should be a hot line at pin 8 and we get 120vac we know all is well with the relay. If not, that means the pin 8 aint hot and the relay/board aint connecting the line (pin 11) to the compressor (pin 8).... time to buy a new board.
Using a jumper from line (pin 11) to compressor (pin 8) is simply bypassing the relay so if the compressor starts, that means there is nothing wrong with the compressor thus, by default, your board is bad.
Edited by DurhamAppliance, 23 January 2014 - 08:43 AM.