Samsung Air Conditioner Error Code E236

E236 indicates an open or short circuit error on the inverter compressor discharge temperature sensor. The control board is receiving a resistance reading from the sensor that falls outside the valid range defined in the resistance-temperature table. The system shuts down the compressor when this fault is detected to prevent overheating damage. A technician needs to check the sensor connector, wiring, and sensor resistance to locate the fault.

No, it is not safe to continue operating the unit while E236 is active. The discharge temperature sensor protects the compressor from overheating, and running the system without valid sensor feedback removes that protection. Continued operation could cause compressor damage, which is a significantly more expensive repair than fixing the sensor fault.

A power reset may temporarily clear the fault code and allow the unit to restart, but E236 will return as soon as the control board reads the sensor again and detects the open or short condition. The underlying problem with the sensor, connector, or wiring must be diagnosed and corrected for the error to be permanently resolved. Repeated resets without repair risk compressor damage.

A knowledgeable DIYer can check the sensor connector for looseness or corrosion, which is the first recommended diagnostic step. Testing sensor resistance requires a multimeter and access to the R/T resistance table for the correct specification values. However, if the sensor or wiring needs replacement, or if the fault traces to the control board, a qualified HVAC technician should perform the repair since the work involves refrigerant-side components.

If the fix is simply reseating a loose or corroded connector, the cost may be limited to a service call fee, typically in the range of $75 to $150. Replacing the discharge temperature sensor itself generally costs between $80 and $200 including parts and labor. If the fault has caused or is traced to control board failure, repair costs can range from $200 to $600 or more depending on the unit.