Upon our arrival we spoke with the customer about their concerns with the system not cooling well. Performing our diagnostics we found that the system was pulling in hot attic air. When the previous coil repair was performed there was a good sized gap left around the exhaust vent pipe and the line set. Today we sealed these areas with duct board and proceeded to test the system finding everything operating within manufacture specifications at this time. If system does not reach desired temp customer will let us know.