I hate to be the bearer of bad news, but I doubt you will get anything from Florida Heat Pump. The first thing I would do is contact a contractor with experience in open loop systems. I would also have a heat load calculation done on your house to make sure your system is not oversized causing short cycling situations. I am not a big fan of FHP because of their questionable customer support, but it sounds like you may have some setup problems. The unit is not that different than any other brand so it should be able to be setup to operate correctly. See if you can locate the FHP distributor in your area and explain the issues and see if they can get you in touch with a local expert.