Last week I installed new condensing unit with new evaporator coil and new txv. after installation unit was doing properly cycle and reaching temperature. Monday almost 4 days later customer call me that evaporator was full of ice, today I manual defrosted and adjusted temp control was set 30 dg, I undertand that could be several reasons, this unit has pressure control switch, reciever,solenoid valve and thermostat. when temp room reach setting, unit close solenoid valve and then open pressure switch and unit turns off, I observed few cycles and seems to me that is doing what is supposed to do. what could be the reason was completed iced up up to some side od the suction line but no to the compressor in short a period time
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