Moved into a home this fall and had a Geothermal heating system installed. It is a Bosch SM024 Greensource Cdi Model. Pump is Geo Flow UP26-116 - same as what's shown in this thread: https://www.geoexchange.org/forum/threads/new-geo-flo-gpm-circulation-pump-noise.7022/ - same installer?). The loop consists of (2) 150' vertical wells. According to preinstall report, percent of load to be covered by geo is 97.1% and balance point is 16° F. A few days ago the compressor shut off with a message on the unit's lcd display saying "Freeze Condition". Installer came out and check the freeze sensor resistor had been cut which allows it to operate down to 15° F. This resistor had indeed been cut. Next they had the well company come out and purge air from the loop. When they arrived after a couple of hours the unit had shut itself down again. They purged a small amount of air and turned the unit back on. After two days of operation it has now shut itself down again with the same "Freeze Condition" error. I am now very concerned since we have subzero temps on the way this week and the outside air temp is currently only 32° F. During the first visit the technician explained that since this is the first year the system may not perform as efficiently because it hasn't gone through a cooling season and had time to heat up the ground. Additionally he mentioned that the earth around the loops hasn't had time to settle. I've got a few questions: 1) Why would the loop temp be <=15° when the outside air temp is above 30°? Is this normal? Are loops like mine often prone to this type of issue and is there a solution? 2) Is this pump excessive for a 2 ton system? The replies in the other thread would lead me to believe so. Could the water temp issues be related to over pumping? 3) Are the explanations the tech gave me true? Does a Geo system need to go through a cooling season to perform well in the heating season? 4) The bit of loop between the pump and the system is constantly dripping condensate to the point that the floor is always wet and it is now dripping into the wall. Additionally, the inside of the Geo unit constantly has a small puddle of water from condensate on the inside. The inside bottom of the unit is now beginning to look corroded and it's only approx 2 months old. Is this normal? Shouldn't there be some kind of tray or whatnot to collect all the water dripping everywhere? At the moment I'm primarily concerned with figuring out why my unit is constantly shutting itself off and finding a way to correct this. I realize more technical data may be required here and I have some spec sheets I can upload or provide more info if needed.