At arrival on 01/27/26 found main floor system not heating properly. Only heating on strip. After diagnostic found that the thermostat setting for compressor minimum run temperature was set to OFF, consequently the compressor was running at any temperature which lead to excessive defrost trials fault. Additionally the condenser fan blade was frozen up and stuck. The compressor was running, but the condenser fan was not spinning. All of these led to system operation issues. Adjusted compressor minimum run temperature and defrosted the condenser fan blade. Tested system for normal operation, system is operating properly at this time. No concerns.