System non op on arrival. Found system in off position with compressor trying to kick on without contactor energized or call for heat or cook. Found compressor to be internally shorted out. Informed client system using outdated refrigerant and would be extremely hard to find direct replacement compressor for this unit. Client states he heard different noise which potentially is the blower motor bearings failing. Heat exchanger in extremely poor condition. System left non op at this time. Will contact client with system replacement estimates Monday at noon.