Need to do leak search and connect vent to bathroom under house. Performed leak search and found a massive crack in a copper line inside indoor coil. Removed coil, sealed crack, and then reinstalled. Due to the age of the coil another leak maybe possible but customer will monitor and let us know of any changes in operation. Recharged system and did as much as possible to keep water from dripping from drain pan. Didn’t see any cracks or leaks in the drain pan itself. Inspected duct under the house to see what materials would be needed to attach vent in bathroom. Informed customer of mold under the bathroom. After customer has dealt with the mold, we can attach bathroom vent. System is operating normally at this time.