A Carrier central AC or heat-pump-style outdoor unit is typically replaced as part of a matched system, so repair decisions should consider both the outdoor condenser and the indoor coil/air handler condition. Using a conservative 20-year expected lifespan, repairing a younger system for common electrical components (capacitor, contactor, fan motor) is often cost-effective if the total stays below the threshold.
However, compressor failures, repeated refrigerant leaks, or major coil replacements can push costs high and increase the chance of future issues. If the system is older and efficiency is poor, replacement can lower energy bills and reduce outage risk during peak weather.
The new-price benchmark here reflects an average installed replacement cost from a major cost-estimation site; real pricing depends on system size, efficiency rating, and whether ductwork modifications are needed.