Originally Posted by mike72168
true but depending on the refridgeration system type a slightly under gases system will cause extended compressor running time hence the fridge will get too cold.also uneven frosting or ice build up on the backwall/evaporator is a indication of loss of gas.
yes, a system low on refrigerant will be less efficient as i said, so the compressor will need to run longer to bring the temperature of the evaporator down. however, once it gets down to the point that the thermostat cuts it out, it will no longer run and so would not freeze up.
it can only ice up if the thermostat is set too low, the airflow is blocked, or the thermostat is no longer in the correct place. low refrigerant as a fault on it's own cannot cause icing