Bard 9043-120 - Burner Limit Switch

Bard part 9043-120 is an OEM burner limit switch (3013631) used on Bard gas heat equipment to help protect the unit from unsafe high-temperature conditions by opening the control circuit when a preset limit is exceeded, helping prevent overheating and nuisance damage during abnormal airflow or burner issues. If your Bard wall-mount or packaged system is tripping on limit, short cycling on heat, or shutting down during a call for heat, replacing a weak or failed limit switch with the correct Bard 9043-120 can restore proper safety operation and dependable heat performance. Always confirm model and serial compatibility and install with power off using the same wiring positions as the original so the control board and ignition system receive the correct safety signal.

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