Found system running d55 or degrade on a t5 limiter I power cycled and tested in force mode system tripped at 15 minutes on a p4 t5 error to derate system. I contacted tech support to verify my findings and confirmed. System is low on refrigerant leak at indoor coil system has been de rating to protect compressor from overheating. Indoor coil will need to be replaced under manufacturer’s limited warranty in order for system to operate properly. Collected 50% down deposit today