The red light indicates that the Norcold recall box has shut the power off to the refer probably because of the low voltage. You need to look at it and see which revision of this band aid you have. If it is not Rev E you need to replace it. If it is then it can be reset with a magnet which I would do as I would monitor it for the next 12 hours to make sure the freezer starts to cool... BUT you need to consider the following by Doug Rainer... one of the best on RV problems:
REV E boxes are the only ones I can reset with the magnet.
I had my FIRST real trip (caused by a defective CU) of the recall last week on a REC C recall box. I bypassed and ran on 120 for 12 hours. when I checked, the refer was still warm inside and when I remove the insulated jacked on the recall thermocoupler. the flue was glowing bright orange for the heat build up of a BLOCKED CU. Made a BIG believer out of me to NEVER have a NON Qualified person to bypass in the field. I had the other techs come over and look at the result and we were all surprised by how bright and hot the flue was. Remember, the Trip temp is over 700 degrees and the normal operating temp is about 350 degrees. Doug