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Bard 8402-074BX is an OEM limit control (L170-7.0) used as a temperature safety switch in Bard HVAC equipment. When abnormal heat conditions occur, this control is designed to open the circuit at a high temperature setpoint to protect the unit, and on manual reset styles it must be reset after the root cause is corrected. If you are servicing a Bard wall mount or packaged system that is short cycling on safety, nuisance tripping, or showing a high limit fault, replacing the correct Bard 8402-074BX limit control helps restore proper protection and reliable operation, but always verify the exact application by matching the original part number and the temperature rating on the existing control before ordering.
* 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.