Hi, purchased this home bout year ago. It was built in 2005. Have one GFCI in unfinished basement. I tripped outside outlet that seems like connected to this gfci. Went downstairs and replaced gfci with new one as instructed there is two sets of black, white and bare so i tested the line and put set that gets around 120v in Line slot and no voltage reading on load. As soon as i turnes on breaker again i have red light came on solid. Please help!!