Perform home inspection on two units downstairs unit is a 19 year-old gas furnace with heat pump outside. Changed 16 x 25 x 4 filter. Check blower, heat, exchanger, indoor coil. Indoor coil is clean, blower wheel has a little buildup on it and the heat exchanger is still functional with no cracks. Inspected outdoor unit contactor capacitor are both good. There is debris inside of unit and coil is dirty. Recommended cleaning to customer customer declined. Upstairs unit changed 16 x 25 x 4 filter blower wheel is dirty recommended cleaning clear drain line system is running but compressor outside is pulling high amps. Compressor also sounds like there are rocks inside a compressor, which is a sign that compressor will fell soon. Highly recommend install supervisor to come out and be proactive and replace the system.