I ran some self diagnostic test and Im not real clear on 2 of them. The first one is on test 07 the results were, #1fresh food top term O fresh , next freash food bottom therm P next Quick chill therm P,next Evap therm P, and the last one Frezzer therm, it has kind of a ? mark, what dose that mean. I also tested the defrost heater test 1-4 and that lit up no problem. Can you explaine to me what that ? mark is, Thank You.