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The Bard 8554-016BX flame sensor with 18 inch leadwire is an OEM safety component used on Bard gas heat equipment to prove burner flame during a call for heat. When the burner lights, this sensor helps the ignition control confirm flame and keep the gas valve energized; if flame is not detected, the system will shut down to prevent unsafe operation. Use this part when troubleshooting nuisance lockouts, intermittent heat, or a no-heat condition where flame proving is suspected, and always match the replacement to your unit model and wiring connection to ensure proper fit and reliable flame sensing.
* Orders less than $50 may incure a minimum order fee.
Bard uses suffixes like "BX" to manage parts internally. These do not change the physical form or function of the part.
A part number ending in "BX" simply means it is packaged in a box for shipping, rather than for internal assembly use.
Example: 8406-142BX is physically identical to 8406-142.