Samsung Air Conditioner Error Code E222

E222 indicates an open or short circuit fault detected in the outdoor condenser outlet temperature sensor, also called the COND-OUT sensor. This thermistor sits on the refrigerant line leaving the outdoor condenser coil and feeds temperature data to the outdoor PCB. The error triggers when the PCB reads a resistance value that is too high (open) or too low (short) to be a valid sensor reading. The unit will not operate normally until the fault is resolved.

No. The COND-OUT sensor provides temperature data the system uses to protect the compressor and manage refrigerant flow. Running the unit without a functioning sensor risks compressor damage or abnormal system pressures. The system should remain off until the fault is diagnosed and repaired.

If the sensor connector was simply unplugged, the repair cost is just the service call fee, typically in the range of $75 to $150. Replacing a faulty COND-OUT thermistor usually costs between $100 and $250 including parts and labor. If the outdoor PCB needs replacement, costs can range from $300 to $600 or more depending on the unit model and labor rates in your area.

The first diagnostic step, checking whether the sensor connector has separated from the outdoor PCB and reconnecting it, is something a careful homeowner can attempt after shutting off power to the unit. If reconnecting the plug does not clear the error, diagnosing the thermistor resistance, inspecting wiring, or replacing the PCB requires multimeter skills and refrigeration knowledge, so a qualified technician is recommended for those steps.

A reset will clear the displayed code temporarily, but if the underlying sensor fault still exists the error will return once the unit attempts to operate. The only way to permanently clear E222 is to correct the root cause, whether that is reconnecting a loose plug, replacing a failed thermistor, or repairing damaged wiring.