回複：Try ServiceMagic

You may try http://www.servicemagic.com/ to find somebody in your area to see if it can be repaired, also you can get a brand new replacement quote, it's possible that the replacement won't cost too much more than the repair cost.
I replaced the whole HVAC system in my house earlier this year, Home Depot quoted $7,500 but I got it replaced at $3,500 from a Service Magic contractor -- absolute no difference, all brand new Goodman equipment.