Upon arrival, customer explained that it would cool intermittently. After further inspection of system found that compressor for system is pulling higher amps than normal run amps. Unit is 28 years old and at the end of its life. Highly recommend replacing. Will be emailing estimates for replacement. System is 5 ton 3 phase cooling with 100k btu natural gas 80% furnace. Furnace is only 8 years old and operating normally. Pricing for replacement will have crane rental included.