Smoker shows E11 and will not maintain set temperature; temperature swings widely.

Safety first: Unplug the smoker before accessing electronics.

Steps:

• Perform a factory reset of the control system if your GE Profile smoker manual provides a procedure (often involves holding specific buttons while powering on).
• Verify that the cooking chamber temperature sensor is clean and not coated with heavy grease, which can cause delayed or inaccurate readings. Gently clean with a non-abrasive cloth.
• Inspect the sensor wiring for routing near high-voltage lines; if possible, separate sensor wires from heater wires to reduce electrical noise.
• If available, compare the smoker's displayed temperature with an accurate oven thermometer placed inside the chamber. Large discrepancies may indicate a failing sensor.
• Replace the temperature sensor if readings are unstable or far off from actual temperature.

If calibration issues persist, the main control board may need replacement or firmware update by an authorized service provider.