Tech came back after recall on system. Found that system was running in heat mode with the heat pump. Initially found inverter board to have failed with communication loss and not allowing RV to swap to cooling. Swapped board out and resolved communication issue but heat pump was still in heating mode. Replaced thermostat, and issue still present. Checked outdoor reversing valve and found solenoid coil to be completely open with no continuity. Tech to order part and come back next day to make repair. Tech came back and replaced reversing valve solenoid. Verified system went into heating and cooling modes effectively. System is now heating and cooling without issue. Thank you for letting TE CERTIFIED service your home.