i have a new Geo installed Oct 2018. In Dec the DXM2 kept locking out. It was due to low temp LT1 code 4. After the jumper was cut, performance has been good. Sufficient heating and now in June, sufficient cooling. I was generating some heat for the HWG in the winter months. As I checked again last week, it appears I’m generating little to no hot water. I also noticed a fault - in test mode I get the same LT1 code 4- low water temp. Are these issues related and why would I have low water temp in June, especially with the jumper cut? Thanks for any advice.