Heating, Air Conditioning, Fridge, HVAC/Icing on Suction
rench4u wrote at 2014-03-18 16:25:02
there are a lot of reasons for the suction line to be icing up but the system being so short of refrigerant that there is only vapor in the system is NOT one of them. If the liquid refrigerant isn't reaching the metering device, there is no expansion of the refrigerant thus, no evaporation, thus no cooling.
Ice on the suction line-at the compressor-indicates no load on the system(clogged filer/evaporator, blower motor failure/wrong direction, etc.)
Im sure the original question has long been answered correctly by a technician who knows the principals of refrigeration and the use of a temperature/pressure chart but, certainly, not by the information given in the initial answer. jus sayin.