Upon arrival customer stated system was charged up with refrigerant last month by a different company. Stated blower runs continuously and indoor temp got to 85 on a recent warm day. Tech found system out on low pressure and system almost completely out of refrigerant. Recommended performing a leak search, tech performed leak search after approval. Search resulted in finding of a leak at evaporator coil. Quoted $5730 to replace coil, system is out of warranty. Customer would like a quote on a new system. Field supervisor is scheduled to come out.