I've got a 5-yr old 5-ton ClimateMaster TEV064BGD02CLTS and am experiencing intermittent condensation issues coming from within the unit. Right now I would estimate there's 1-2 gallons of condensate sitting in and around the unit and running across the floor. It's been like that for a few days now but this has been happening intermittently for years. Unfortunately I'm flying a little blind because I geeked out on the air side and have a Trane XL950 thermostat to control 6 zones and it can't see wet side data like most other ClimateMaster owners can do via their thermostat. I did have an ACDU01 communicating tool the first couple years but somehow it got fried and won't turn on anymore. Anyway.. Info/clues: Eastern Pennsylvania House is 5 yrs old, this is the original unit ~2200 sq ft first floor ~1800 sq ft second floor ~2100 sq ft basement System is installed in the basement which is kept at 68-70F and 43-47% humidity year round 4 vertical loops run in parallel, 225 ft deep each Loops are 3/4" Piping between unit and where loops split is 1.25" Everything is well insulated Now that I'm home full time in covid world, I've been able to observe a little closer what's going on. The last couple nights have been among the coldest of the season so far. The unit was finally running in second stage for a good chunk of the night two nights ago and I would assume it's not a coincidence that's when I woke up to a big slug of condensate for the first time this year. So my question - does it seem like my loop is undersized and the entering water temperature is too low? Something seems wrong if the factory insulation inside the unit isn't thick enough to prevent this much condensation in a conditioned environment. I can actually watch the condensation seep through the insulation and drip down. I just ordered an ACDU03 communicating tool and will be able to report wet side data in another week or so. In the meantime, any help or educated guesses are appreciated!