Came in for a no cool call. Mini split 3y/o When testing outdoor system found that shredder valve was loose on suctions line, causing refrigerant to completely leak out of the system. Let costumer know about this issues and presented some options. Costumer move forward with repairs. Proceed to thigh shredder valve and leak tested too to make sure it wasn’t leaking my more and added the refrigerant back to factory charge. Thank you for choosing TE Certified!