Performed a two system maintenance. Checked all electrical, mechanical and safety components. Tested amp draws, checked pressures, checked heat exchangers, systems are not operating properly at this time. System on has a cracked heat exchanger and two pitted contactors. System on left has compressor A flat on R-22 Freon and compressor B burnt out. Found gas valve not operational either. Will send estimate to repair unit on right, unit on left needs replacement. Recommending to replace both units.