I've started a keezer build in May. I got a used chest freezer. It has worked fine for 8 months. I had the the temp controller wired into a junction box then just plugged in the freezer into the receptacle. I finished it up 2 days ago and I wired the controller into the fridge's wiring. At first it froze ice on the wall. Then it wouldn't cool below 55. I defrosted and cleaned the inside and dried it out and now it won't cool at all. I just can't figure out why it tanked the day I finished it. Is there anything I can do to confirm that the freezer is dead.