I have a ranco single stage controller that I use with a keezer/fermenter. It was working fine and then I noticed that the lcd was blank when I went to change the temperature. I opened it up and two of the wires had come loose (one more than the other). I put the wires back in and plugged it in and it seem to boot up fine. When the temp went out of range and it was supposed to turn on the keezer it started making a clicking sound and the keezer isn't on. I thought perhaps I wired it incorrectly but it seems like it's correct. Any ideas? I bought this a few months ago.