I would like to get some opinions of what type of system I should purchase for an upcoming renovation project. I have been quoted two systems: 1. 2 Stage 4-Ton 16 SEER system with variable speed handler (Lennox) or 2. Single stage 3.5 ton 14 SEER system with variable speed handler (Trane) There is a $4K difference in the price of the two quoted systems. Based on the calculators I have seen, it would take 60 years to pay off the 2-Stage system. Is there somethin else that I should be considering to make a valuation of the two systems? Thanks for any comments you can provide!

Hi I have a Trane XL14i unit that is about 2.5 years old. After summer, when starting to use indoor heat, I noticed the outdoor unit sounding differently. The fan had stopped running but the compressor was. Turned the unit off and removed the cover for the electrical center. Replaced the capacitor but the fan still would not run. The green diode on the circuit board blinks three times in a second. Any advice would be much appreciated.