TECHNICIAN RICK FOUND THAT THE SYSTEM HAS A FREON LEAK AT THE ON THE SUCTION LINE NEAR THE COMPRESSOR AND A CLOGGED THERMAL EXPANSION VALVE ON THE INSIDE COILS. SYSTEM USES THE OLD 410a FREON AND IT HAS ALL LEAKED OUT. REPAIR: - SYSTEM PUMP DOWN - REPAIR LEAK ON REFRIGERANT SUCTION LINE - ADD FILTER DRIER, AS NEEDED - CLEAN OUT INSIDE THERMAL EXPANSION VALVE - LEAK CHECK - CHARGE WITH 410aFREON - TEST SYSTEM
