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Bard part 9022-039 is an OEM 40153-SO-E cad cell assembly used on Bard oil-fired equipment to prove flame by sensing light at the burner. When the cad cell signal is weak due to a failed sensor, dirty sight glass, or misalignment, the primary control may shut the burner down to prevent unsafe operation; replacing the correct Bard assembly restores proper flame detection and reliable burner run time. This is a direct-fit Bard replacement intended to match the original wiring and mounting style used with compatible Bard oil burner primary controls such as the 40100-02, so you can service flame-sensing issues without modifying the burner setup.
* Orders less than $50 may incure a minimum order fee.