Purchased two new Trane A/C units 3 years ago, one on each floor.
Should new units ever need refrigerant added? What if they need it multiple times?
I was told that a need for refrigerant does NOT mean that there is a leak (this in a < 1 year old unit). Agree?
Leak was found and finally fixed in Unit #1. Never found leak in #2. Refrigerant last added 2 years ago in #2...is it possible to have THAT slow of a leak?
Now #2 got noisy (lower floor, had not noticed lack of cooling; turned off immediately). Tech said there was NO refrigerant at all and we needed a new coil due to aluminum rubbing copper. He also said a good installer would have seen that and “added a bit of foam” to make sure that didn’t happen.
During 1-year warranty period, we told company we were thinking of requesting both units to be replaced as techs kept telling us “this shouldn’t happen.” Company agreed to cover any issues related to these leaks “forever” and said we didn’t need new units.
Is the coil going bad caused by the refrigerant issue? If not, is this a typical problem 3 years after buying a new unit? Defective unit? Defective installation?
We’ve had more problems with these new units in 3 years than with our old ones in 8 years. Sorta thought it'd be the other way around!