I recently had my air conditioner (Trane split system, r22 condenser, mfd 4/97)inspected on an Angies's List 20 point inspection for $70. My air conditioner barely cooled the entire 12 years we lived here (we live in California and the temperature is rarely boiling so we rarely use it). They checked it and said it needs to be recharged, estimate $50 per lb., for 8 lbs, and leak checked. After the estimate that was it. I asked if everything else seemed okay, as per the 20 point check. No answer.

At this rate, am I better off fixing it or replacing it? BTW, my house is about 2400 sq ft.