Hello has anyone had a problem with the ltc-308 digital temp controller failing? My unit is only about a year old, but it is having a serious problem. I the 308 in my fermentation chamber. I live in a cold climate so i only have a large bulb light connected to the heat side and noting on the cool side. in the past the light turns on to heat then shuts off to cool. This has worked fine up until last week. I hear d the 308 beeping and I checked the chamber. The digital display read like 80 degrees, yet my light was still on-heating even more. I unplugged the unit and left it that way for an hour or so. I then plugged it back in only to have it do the same thing. Any ideas?