I have a Carrier Tech 2000 SS heat pump system that is around 14 years old. It was top-of-the-line when new. The air handler fan was replaced about 5 years ago, the evaporator coil in the air handler was replaced about a year ago when it leaked, and now the condenser tank in the compressor has sprung a leak. My HVAC tech tells me that replacing the condenser tank will cost about $1000 installed, and that a new system, including new compressor unit and air handler components, etc., will run closer to $7000 or $8000 installed.

The big question: repair once again and try to get a few more years of service, or replace the whole system?