This Lennox heat pump unit was mfg in 7/2006.
The fin coloring was different than usual. Mostly when I see the discoloration there is a male dog present and the problems are near the bottom. This was on upper and lower areas.
Any opinions ?
For a little background, original home 1979, and this area of home was add-on in appx. 2006. The inner evaporator for this system was mfg in 2008. Wonder if they didn’t match it when installed ?