No cool upstairs and downstairs not keeping up. Check and find upstairs ac unit fan motor not operating properly and locking up. Need to replace the fan motor. The system also needs a compressor saver kit to improve startup and reduce the load. Found downstairs a/c unit operating but compressor in poor condition and making noise with a high amp. Suggest installing compressor hard start kit to improve startup and reduce the load. Customer declined repair. Both system operating at this time but both system 14-year-old in poor conditions suggest upgrading system.