Got called to service this ice cuber/ dispenser today. Hoshizaki DCM 450 BAE unit is at least 15 years old. Head Pressure nearly 400 PSI (air cooled unit) condenser was plugged solid. Also found that the solenoid valve's to the water are sticking shut because they are coated with corrosion. This is also the one with tube shaped evaporator with the auger that pushes ice up and out the unit. Trying to convince the owner to just get a new machine because by the time I clean this unit out, clean the coil, then check for other problems and repair he could easily be looking at a sizeable bill and it makes since to sell him a new one. The only problem is that I have worked with this guy in the past and he always takes the cheap road out never wants to upgrade. then he will complain 3 months later when something else breaks down. How do you handle this type of customer?