Came out for system being stuck in heating mode upon arrival found faulty error codes that were saying there was something wrong with the reversing valve found no problematic wires or anything loose or being grounded out. Need to have somebody come and replace or fix the reversing valve solenoid. Return to verify system running in heating mode. Getting 24 V to reversing valve. Ohmed out reversing valve and getting no continuity. Need to replace reversing valve solenoid. Ordered part from carrier need to schedule and return to replace it. Part is covered under warranty, client just has to pay for labor. -AK