Just a question as I see an earlier thread on Goodman... Worked on a Goodman gas pack friday and found the heat exchanger was cracked, blowing #3 port flame in severe rollout... heres the kicker...the unit is only 2 years old (2 NC winters that averages 6 months usage) ..It is installed in a very ritzy high rise condo ( go figure) ...anyone else out there find goodman heat exchangers go bad so quick?