Prior company invoice barely legible, after fi di g the electronic float with red light on and system still operational and Attic unit flooded conclusion te safety is failed.. Prior statements on invoice and from customer parroting what they were told cannot be substantiated or confirmed. Refrigerant charge checked ok Half gallon water poured in drain went down without backing up Noted drain goes down into slab outside and was cut off by others, poured water into cut off and had no backing up Quoted and installed new float safeties System dates to 2018