Samsung Hood Error Code E-22

The E-22 error code on a Samsung hood indicates a temperature sensor short circuit condition. The temperature sensor, typically a thermistor, is responsible for monitoring heat levels inside the hood or at the motor/electronics assembly. When the control board detects that the sensor circuit has shorted, meaning the resistance has dropped below an expected threshold rather than reading within the normal operating range, it triggers this fault code to alert the user and protect the appliance from operating under unmonitored thermal conditions.

A short in the temperature sensor circuit can originate at the sensor itself, at the wiring harness connecting the sensor to the control board, or at the control board's sensor input terminals. A shorted thermistor will typically read near-zero resistance or dramatically lower resistance than its rated specification, which the control board interprets as an abnormal condition. Damaged insulation causing two wires to contact each other, a failed sensor element, or moisture intrusion into the connector can all produce this shorted circuit reading.

Because the hood relies on temperature data to manage fan speed behavior and protect internal components from overheating, a shorted sensor prevents the control system from making accurate thermal decisions. The hood will not operate normally while this fault is active. Resolving E-22 requires physically inspecting the sensor, its wiring harness, and the connector at the control board to isolate where the short is occurring before determining whether the sensor or the board itself needs replacement.