Hi, I could use some help with my old hot tub. I changed the heater recently and figure I must have screwed something up. The temperature is set to 100 but heats up to 110. Would this be a problem with the heat sensor or the high limit sensor. Since the hot tub temperature is showing as 110 - I assume the temperature setting is working fine. I suspected I had over tightened the plate that houses the high limit sensor when I put it back together but I took it apart just now and the wire doesn't look damaged. I don't see where the temperature sensor is housed - the wire goes up into the hot tub through a small hole where the top side controller wire goes. I understand it has to be in the plumbing somewhere but I don't want to tear the hot tup apart to find it. I would have replaced the high limit sensor to see if that was the problem but there is no code on it - it's a correct-tech mini max digital spa oak (2001).