Haven't seen many issues, so far, with Trane but Carrier version we have a near 100% failure rate within the 3 year warranty period. Mostly on Gemini. I do have an Aquasnap in its 3rd year with no leaks so far. 14 coils, I think, on it. Does have an intermittent HP issue on Circut C but the coils seem to be holding up on it. Compared to the GX it replaced cleaning is almost a pleasure.