Customer complained that unit wasn’t coming on at all. Checked the float switch and was full of water . Cleaned drain line and installed IFLO and kicked on the unit. After kicking on the unit and taking DT reading I had a 12 F DT checked the pressures and subcooling was 4 degree and superheat was 30F which means unit is low on Freon. Checked for leak and found leak on evaporation coil. Unit is nearly 10 years old and recommend for replacement. Customer agreed to add Freon today and get a quote for a new unit.