Lennox | Numeric Codes (E-Codes)

Error Code E241

Troubleshooting guide for the Lennox Numeric Codes (E-Codes) system fault E241.

Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.

System Diagnosis

Flame Sensor Out of Sequence. Flame sensed when gas valve should be closed.

Potential Causes & Solutions

  • Stuck gas valve, shorted wire.

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