do i cut wire when installing board?

hello all
ge model GSS25JFMDCC
I replaced a circuit board WR55X10942 on this fridge do to a no defrost situation I checked out all other parts and are working fine
the instuctions stated I might have to cut wire pin 2 on the 9 pin connector but my fridge was not listed now 2 days later fridge not cooling again,
should I go back to cut wire?
i was reading even if mine was not listed might still have to cut wire???
evap was freezing up checked all parts all ok jumped wires at board and got heater to come on, appeared board was the issue
thanks alot