Service call for a/c not working there is only one zone for the entire home and this unit only serves the 2nd and 3rd floor. Unico air handler with a Lennox outdoor condenser. We were just recently here added dye and refrigerant to the system due to the system being low on refrigerant. Dye was added to try and find where the unit was leaking from. Customer called back because the unit was not cooling over the weekend and had shut the system down. On arrival system was turned on and all operations were checked. While inspecting the outdoor condenser I had noticed that there was dye and oil over the top of the unit coming from the inside of the system. Removed top to the condenser and found that the unit has multiple leaks at the condenser. The leak has gotten bigger and can no longer hold refrigerant. This is a 410A system it was explained to the customer that 410a units are no longer being manufactured and the stock at supply houses are limited. I explained that we will try and p