Eval- when I arrived the evaporator coil and Condenser were frozen solid. Had to turn on furnace just to melt the ice Once ice thawed out, turned on system to check operation status Gauges told me we were low on Refrigerant, 4 degree subcool Sat temp on Low side was 31 degrees Went ahead and leak checked, found leak in evaporator coil Did not find leak in Condenser Went over price of Evaporator coil without Warranty coverage $5,500, recommended that replacing was the best option, this is the fourth call this summer Need to schedule Comfort Advisor for tomorrow morning 11 am Rob G- preferable Thank you for Choosing Comfort Experts, have a great night