
Bard 8406-135BX Pressure Switch
As a seasoned technician, you know that protecting the compressor is your top priority when servicing high-performance equipment. The Bard 8406-135BX Pressure Switch is the definitive OEM safety control designed to monitor the suction side of the refrigeration circuit. Factory-calibrated to cut out at 14 PSIG, this low pressure switch acts as a critical line of defense against catastrophic failure. By instantly interrupting operation when refrigerant levels drop or airflow becomes restricted, it prevents the compressor from running in a starved state, which can lead to overheating and internal mechanical seizure.
This genuine Bard replacement part features a rugged "BX" boxed design for secure transit and matches the exacting specifications of the original 8406-135 component. Its screw-on mount allows for a precise fit on compatible Bard wall-mount air conditioners and heat pumps, ensuring a reliable leak-free seal. Whether you are troubleshooting a short cycling HVAC system or performing a preventative maintenance overhaul, installing this 14 PSIG limit switch restores the factory-engineered safety interlock, maintaining system stability and operational longevity in demanding commercial and industrial environments.
Key Benefits for Contractors:- Precise 14 PSIG Setpoint: Provides accurate low-pressure monitoring to trigger system shutdown before domestic or commercial compressor damage occurs.
- OEM Compatibility: Designed specifically for use in Bard W30HB, W36HB, W42HC, and W48HC series wall-mount units.
- Enhanced Circuit Protection: Prevents nuisance operation during loss of charge, evaporator icing, or severe filter restrictions.
- Durable Construction: Built to withstand the high-vibration environment of industrial HVAC cabinets for long-term reliability.
- What are the symptoms of a failing pressure switch? Look for intermittent cooling, strange clicking noises from the contactor, or a "locked out" system with a low-pressure fault code.
- Does the 'BX' suffix affect performance? No. The 'BX' simply indicates the part is individually boxed for shipping; it is physically and technically identical to the 8406-135.
- How do I verify if the switch is open? Use a multimeter to check for continuity across the terminals when the system is at resting pressure; if the circuit is open at normal static levels, the switch has likely failed or drifted out of calibration.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $32.10
-65%$32.10
$11.23Bard 8406-135BX Pressure Switch
As a seasoned technician, you know that protecting the compressor is your top priority when servicing high-performance equipment. The Bard 8406-135BX Pressure Switch is the definitive OEM safety control designed to monitor the suction side of the refrigeration circuit. Factory-calibrated to cut out at 14 PSIG, this low pressure switch acts as a critical line of defense against catastrophic failure. By instantly interrupting operation when refrigerant levels drop or airflow becomes restricted, it prevents the compressor from running in a starved state, which can lead to overheating and internal mechanical seizure.
This genuine Bard replacement part features a rugged "BX" boxed design for secure transit and matches the exacting specifications of the original 8406-135 component. Its screw-on mount allows for a precise fit on compatible Bard wall-mount air conditioners and heat pumps, ensuring a reliable leak-free seal. Whether you are troubleshooting a short cycling HVAC system or performing a preventative maintenance overhaul, installing this 14 PSIG limit switch restores the factory-engineered safety interlock, maintaining system stability and operational longevity in demanding commercial and industrial environments.
Key Benefits for Contractors:- Precise 14 PSIG Setpoint: Provides accurate low-pressure monitoring to trigger system shutdown before domestic or commercial compressor damage occurs.
- OEM Compatibility: Designed specifically for use in Bard W30HB, W36HB, W42HC, and W48HC series wall-mount units.
- Enhanced Circuit Protection: Prevents nuisance operation during loss of charge, evaporator icing, or severe filter restrictions.
- Durable Construction: Built to withstand the high-vibration environment of industrial HVAC cabinets for long-term reliability.
- What are the symptoms of a failing pressure switch? Look for intermittent cooling, strange clicking noises from the contactor, or a "locked out" system with a low-pressure fault code.
- Does the 'BX' suffix affect performance? No. The 'BX' simply indicates the part is individually boxed for shipping; it is physically and technically identical to the 8406-135.
- How do I verify if the switch is open? Use a multimeter to check for continuity across the terminals when the system is at resting pressure; if the circuit is open at normal static levels, the switch has likely failed or drifted out of calibration.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
As a seasoned technician, you know that protecting the compressor is your top priority when servicing high-performance equipment. The Bard 8406-135BX Pressure Switch is the definitive OEM safety control designed to monitor the suction side of the refrigeration circuit. Factory-calibrated to cut out at 14 PSIG, this low pressure switch acts as a critical line of defense against catastrophic failure. By instantly interrupting operation when refrigerant levels drop or airflow becomes restricted, it prevents the compressor from running in a starved state, which can lead to overheating and internal mechanical seizure.
This genuine Bard replacement part features a rugged "BX" boxed design for secure transit and matches the exacting specifications of the original 8406-135 component. Its screw-on mount allows for a precise fit on compatible Bard wall-mount air conditioners and heat pumps, ensuring a reliable leak-free seal. Whether you are troubleshooting a short cycling HVAC system or performing a preventative maintenance overhaul, installing this 14 PSIG limit switch restores the factory-engineered safety interlock, maintaining system stability and operational longevity in demanding commercial and industrial environments.
Key Benefits for Contractors:- Precise 14 PSIG Setpoint: Provides accurate low-pressure monitoring to trigger system shutdown before domestic or commercial compressor damage occurs.
- OEM Compatibility: Designed specifically for use in Bard W30HB, W36HB, W42HC, and W48HC series wall-mount units.
- Enhanced Circuit Protection: Prevents nuisance operation during loss of charge, evaporator icing, or severe filter restrictions.
- Durable Construction: Built to withstand the high-vibration environment of industrial HVAC cabinets for long-term reliability.
- What are the symptoms of a failing pressure switch? Look for intermittent cooling, strange clicking noises from the contactor, or a "locked out" system with a low-pressure fault code.
- Does the 'BX' suffix affect performance? No. The 'BX' simply indicates the part is individually boxed for shipping; it is physically and technically identical to the 8406-135.
- How do I verify if the switch is open? Use a multimeter to check for continuity across the terminals when the system is at resting pressure; if the circuit is open at normal static levels, the switch has likely failed or drifted out of calibration.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












