Display shows E5 and the smoker shuts down or will not start; fan and element may not run.

Safety first: Unplug the smoker and allow it to cool completely. Do not attempt to reset while hot.

Steps:

• Inspect vents: Ensure the top exhaust vent and any side or rear vents are open and not blocked by foil, food, or debris.
• Clean interior: Remove racks and drip tray. Clean heavy grease from the walls, around the heating element, and from the drip channel. Built‑up grease can cause hot spots.
• Locate high‑limit thermostat: On Klarstein units, this is often a small round thermostat with two terminals mounted near the heating element or on the back wall. Some are manual‑reset types with a small red button.
• Reset or test: If it has a reset button, press firmly until you feel a click. If no button, test for continuity with a multimeter. If open at room temperature and does not reset, replace it.
• Reassemble and test: After cleaning and resetting/replacing the thermostat, reassemble and run the smoker empty at low temperature to confirm normal operation.

Important: If the high‑limit trips repeatedly, investigate airflow and loading (do not block air circulation with large pans or foil).