I have a v-lec Aircon model asw/h24b4/hsa and it shows e3 when I turn it on and nothing works what does this mean?

The sensor is a thermistor, at low temperatures it has a resistance of over 100KO, but you need a special ohmmetre to test it - low voltage ones will simply show infinite. But yes, you could use one from another unit, yours it uses the exact same electronics pack like most of the chinese ones The sensor is a thermistor, at low temperatures it has a resistance of over 100KO, but you need a special ohmmetre to test it - low voltage ones will simply show infinite. But yes, you could use one from another unit, yours it uses the exact same electronics pack like most of the chinese ones