Returned today to complete repairs for system. House is under contract, and customer advised me that lender wanted all repairs completed in order to close on home. Advised customer that I would do leak search to identify where leak is coming from. Found leak at the shredder core valves at the outdoor unit. Did full refrigerant leak search on both indoor and outdoor unit and that was the only troubled area. Advised customer that we do not do repairs on obsolete r22 refrigerant systems and do not recharge r22 units with a known leak. Customer did still want to move forward with other repairs recommended during last visit. Cleaned blower wheel, replaced blower motor capacitor, replaced outdoor contactor, cleaned outdoor condenser coils, added in line float switch (flood protection), installed emergency wet pan switch (flood protection). Tested system and everything is back up and running. Heat is not heating as efficiently as it should due to low refrigerant charge. Customer is aware, the