Meaning, cause and step-by-step fix for the codes people search most.
On a Samsung air conditioner, E1 means the indoor room temperature sensor (thermistor) is shorted, open or defective. The AC often refuses to start. The fix is to reseat or replace…
Read the fixE5 on a Samsung AC means the indoor heat exchanger sensor is open or short. The sensor usually needs inspection or replacement.
Read the fixE6 on a Samsung AC indicates a defective outdoor heat exchanger sensor (open or short). The sensor needs checking or replacing.
Read the fixE7 on a Samsung AC means the heater temperature sensor is open or short, so it cannot read the heat exchanger surface temperature. The sensor usually needs replacing.
Read the fixE4 on a Samsung AC means the outdoor discharge pipe temperature is too high. The unit shuts down to protect the compressor.
Read the fixE101 on a Samsung AC means the indoor unit lost communication — usually a loose connection or damaged cable around the indoor unit.
Read the fixE102 on a Samsung AC means faulty communication at the outdoor unit — commonly a loose connection between indoor and outdoor units.
Read the fixOn a Samsung AC, CF is not an error — it is a filter-cleaning reminder. Clean the indoor air filter and the code clears.
Read the fix