I am trying to get the proper owner's manual for a GE upright freezer we recently bought . It is a second hand unit and I don't see any model # on it. I is white in color , manual defrost with wire shelves . It is a very large upright 20 cu. ft or better unit approximately 6 ft h, 32"wx and approximately 28" deep . it has two amber lights on the lower bottom rightsid hand side with a on / off switch between them can you help me ?