E1
Char-Broil Ambient Temperature Sensor Open or Short

E1 error on display, smoker will not start heating cycle

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Failed cabinet thermistor, Broken sensor harness near cabinet wall, Connector not fully seated on control board

How to Fix / Troubleshooting

Safety first: Disconnect power before removing any panels.

  • Locate the ambient sensor: On many Char‑Broil electric smokers, the ambient sensor is mounted inside the cabinet wall or near the exhaust. Identify the two‑wire sensor and trace its harness.
  • Check harness and connector: Inspect the harness for pinched or cut insulation, especially where it passes through metal. Reseat the connector at the control board.
  • Measure resistance: With the sensor unplugged, measure resistance across its leads. An infinite or near‑zero reading indicates a bad sensor.
  • Replace sensor if defective: Remove the mounting screw or clip, pull the sensor out, and install a new OEM Char‑Broil thermistor/RTD. Route the wire through the original grommet to prevent chafing.
  • Power up and test: Reassemble, plug in, and verify that the E1 code clears and the smoker can be set to a temperature.
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Repair Difficulty

Medium 3/5

Required Part

Cabinet Thermistor / Ambient Temperature Sensor
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