Samsung Air Conditioner Error Code E105

E105 means the evaporator outlet temperature sensor on the indoor unit has separated from the refrigerant pipe it is supposed to monitor. Without proper contact with the pipe, the sensor cannot provide accurate temperature readings, so the unit shuts down to protect itself. The fix typically involves opening the indoor unit and reattaching the sensor to the pipe.

The unit will typically shut itself down when E105 is active, so continued operation is generally not possible until the fault is resolved. Attempting to repeatedly reset and run the unit without fixing the sensor position risks inaccurate temperature control, which could lead to coil icing or compressor stress over time. It is best to address the sensor position before resuming normal use.

If the sensor only needs to be repositioned with no parts required, a service call to have a technician perform the repair typically costs between $75 and $150 depending on your location and the service provider. If the mounting clip or the sensor itself needs replacement, parts and labor combined generally range from $100 to $250. DIY repair costs are minimal if no replacement parts are needed.

In many cases, yes. The repair involves opening the indoor unit panel, locating the EVAP OUT sensor, and pressing it back into contact with the evaporator outlet pipe, then securing it with its clip or bracket. No refrigerant handling or electrical work beyond basic reassembly is required, making it accessible for a careful DIYer. However, if the mounting hardware is broken or the sensor itself is damaged, replacement parts will be needed.

A power reset alone will not permanently clear E105 if the sensor is still detached from the pipe. The error will return once the unit restarts and detects the out-of-range temperature reading again. The sensor must be physically repositioned and secured against the pipe before the fault will stay resolved after a reset.