Hi, We just had a geothermal system installed, replacing an 18-year-old air-source system. We went with a Water Furnace Series 7, with a TPCC32U01 thermostat. We haven't really seen it in operation yet as our weather has been very mild. One thing I've noticed is the humidity reading on the TPCC32U01 is running high. I'm basing that on four other hygrometers that we have in the house that I've moved near the TPCC32U01. They all vary by a couple percent, but the TPCC32U01 is consistently reading 8-10% higher than all the others. I assume the reading is being taken at the thermostat, and not from the main unit in the basement. The basement humidity runs higher, but even at that, the TPCC32U01 reading is 3-4% higher than that. My concern is that the higher reading will effect the operation of the system. In the summer it may run more often, trying to hit what it thinks is the desired humidity, and in the winter it may keep the house drier than it needs to be. I'll be contacting the installer, but I wanted to check here first to see if this is a known issue. I was also wondering if this is something that can be adjusted in the system, and if not, how adamant should I be about getting a replacement thermostat? Thanks for your help!