Performed 1 system diagnostic on whole home unit. Found dirty condenser, dirty filter, rusted evap coil, restriction in metering device and evap coil, no flood protection, rusted burners, single walled flue pipe, compressor is failing due to restriction, blower motor has inconsistent amp draw, due to the age of unit and types of repairs recommend replacing system an signing up for homecare. Based on our findings today, it might be time to think about getting a brand new system.