I love this place! I did indeed check the owners manual and it explained some of the codes in one place but not all of them. When Kevin suggested the water filter, we looked at that part of the manual and sure enough, the explanation was there and that's what it was. George, the refrigerator is a Sub-Zero BI-42SD. The freakin' filters cost $50.00and they say they only last a year. Ours only lasted eight months but we use the water through the door more than average.

Thanks everyone for your help and all the laughs.