No cool a/c repair call for the downstairs system. Found both system old and phaseout system. Found both ac low on freon, burnt/pitted main switch and starter is weak. Installed compressor saver for both ac system, added 2 lbs of freon to downstair and 1 lb of freon for upstair. Tested and both systems are cooling at this time. Systems will need to be replaced in the near future.