All the wires are in the right location direct from each unit to the right terminals on the outdoor unit also I forgot to mention that I had already evacuated the system remeasured all the line set lengths and recharged the system by weighing the charge in after the last time I had the flare leaks I may have a dud on my hands .
Originally Posted by superfittertech
if it only runs correctly with all heads running, then it is definitively cross wired. this needs to be corrected 1st, then remove all refrigerant, evacuate and weigh in the charge. good luck