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The Bard 8406-167BX High Pressure Switch (boxed) is an OEM refrigerant safety control that monitors discharge pressure and helps protect the compressor by opening the control circuit if head pressure climbs beyond the safe operating range. In Bard wall mounted air conditioners and heat pumps, a properly functioning high pressure switch is critical for preventing nuisance lockouts and avoiding damage caused by airflow restrictions, dirty coils, failed condenser fans, or overcharge conditions. Because pressure switch styles and trip settings can vary by unit and refrigerant, confirm the exact Bard model and serial number or parts list before ordering to ensure correct fit and operation.
* 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.