Norcold refrigerator not working despite propane burning

we moved our motor home about 6 miles. Was plugged into elec, so when we unplugged, put the ref over on propane. When we got to our destination, ref. will not come on in elec, or propane, its just like its dead. Seems like this happened before and the repair person said to do a jumper cable, and we do not remember what we jumped. Can any of you wonderful guys help us???