Lochinvar & A.O. Smith 100113144 Switch
The Lochinvar & A.O. Smith 100113144 Blower Prover Switch is a critical safety component designed for high-efficiency water heaters and commercial boilers. As a direct OEM replacement for NS2-1333-01, this pressure switch (often referred to as an air pressure switch or draft prover switch) monitors the differential pressure created by the inducer motor. By verifying stable airflow, it ensures the sequence of operation proceeds to ignition safely. Failure of this switch often results in a "no-fire" condition or blower prover circuit error codes common in Lochinvar Knight and A.O. Smith Cyclone models. Built to precise factory specifications, the 100113144 maintains the pressure set points required to prevent incomplete combustion. For contractors performing HVAC induction motor troubleshooting, this blower prover switch replacement provides the exact electrical and mechanical tolerances needed to restore system integrity and meet code requirements without the reliability risks associated with universal aftermarket components.
Technical Specifications and Benefits
- Direct OEM Compatibility: Engineered specifically for Lochinvar and A.O. Smith equipment, ensuring the correct set point for the blower prover switch.
- Enhanced Safety: Continuously monitors the inducer blower performance to confirm flue gases are being properly exhausted before allowing the gas valve to open.
- Industrial Durability: Designed to withstand the high-temperature environment of commercial boiler cabinets for long-term field reliability.
- Critical Calibration: Replaces part number 100113144 and legacy NS2-1333-01 with factory-calibrated sensitivity to prevent nuisance tripping.
Common Installation Questions
What are the signs of a failing 100113144 switch?
Technicians typically observe the inducer motor running continuously without the burner igniting, often accompanied by a "waiting for blower prover" or "air pressure switch open" fault code on the control board.
Is this switch compatible with multi-stage inducer systems?
This specific model is calibrated for applications requiring the 100113144 part number. Always check your specific Lochinvar or A.O. Smith model's technical manual to verify the required pressure set point before installation.
How do I test the prover switch during a service call?
Using a digital manometer, verify that the inducer is pulling the required inches of water column (WC) at the switch port and use a multimeter to check for continuity across the terminals once the set point is achieved.
California Proposition 65 Warning: This product may contain materials known to the State of California to cause cancer, birth defects, or other reproductive harm.
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: $66.19
-65%$66.19
$23.17Lochinvar & A.O. Smith 100113144 Switch
The Lochinvar & A.O. Smith 100113144 Blower Prover Switch is a critical safety component designed for high-efficiency water heaters and commercial boilers. As a direct OEM replacement for NS2-1333-01, this pressure switch (often referred to as an air pressure switch or draft prover switch) monitors the differential pressure created by the inducer motor. By verifying stable airflow, it ensures the sequence of operation proceeds to ignition safely. Failure of this switch often results in a "no-fire" condition or blower prover circuit error codes common in Lochinvar Knight and A.O. Smith Cyclone models. Built to precise factory specifications, the 100113144 maintains the pressure set points required to prevent incomplete combustion. For contractors performing HVAC induction motor troubleshooting, this blower prover switch replacement provides the exact electrical and mechanical tolerances needed to restore system integrity and meet code requirements without the reliability risks associated with universal aftermarket components.
Technical Specifications and Benefits
- Direct OEM Compatibility: Engineered specifically for Lochinvar and A.O. Smith equipment, ensuring the correct set point for the blower prover switch.
- Enhanced Safety: Continuously monitors the inducer blower performance to confirm flue gases are being properly exhausted before allowing the gas valve to open.
- Industrial Durability: Designed to withstand the high-temperature environment of commercial boiler cabinets for long-term field reliability.
- Critical Calibration: Replaces part number 100113144 and legacy NS2-1333-01 with factory-calibrated sensitivity to prevent nuisance tripping.
Common Installation Questions
What are the signs of a failing 100113144 switch?
Technicians typically observe the inducer motor running continuously without the burner igniting, often accompanied by a "waiting for blower prover" or "air pressure switch open" fault code on the control board.
Is this switch compatible with multi-stage inducer systems?
This specific model is calibrated for applications requiring the 100113144 part number. Always check your specific Lochinvar or A.O. Smith model's technical manual to verify the required pressure set point before installation.
How do I test the prover switch during a service call?
Using a digital manometer, verify that the inducer is pulling the required inches of water column (WC) at the switch port and use a multimeter to check for continuity across the terminals once the set point is achieved.
California Proposition 65 Warning: This product may contain materials known to the State of California to cause cancer, birth defects, or other reproductive harm.
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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Product Information
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Description
The Lochinvar & A.O. Smith 100113144 Blower Prover Switch is a critical safety component designed for high-efficiency water heaters and commercial boilers. As a direct OEM replacement for NS2-1333-01, this pressure switch (often referred to as an air pressure switch or draft prover switch) monitors the differential pressure created by the inducer motor. By verifying stable airflow, it ensures the sequence of operation proceeds to ignition safely. Failure of this switch often results in a "no-fire" condition or blower prover circuit error codes common in Lochinvar Knight and A.O. Smith Cyclone models. Built to precise factory specifications, the 100113144 maintains the pressure set points required to prevent incomplete combustion. For contractors performing HVAC induction motor troubleshooting, this blower prover switch replacement provides the exact electrical and mechanical tolerances needed to restore system integrity and meet code requirements without the reliability risks associated with universal aftermarket components.
Technical Specifications and Benefits
- Direct OEM Compatibility: Engineered specifically for Lochinvar and A.O. Smith equipment, ensuring the correct set point for the blower prover switch.
- Enhanced Safety: Continuously monitors the inducer blower performance to confirm flue gases are being properly exhausted before allowing the gas valve to open.
- Industrial Durability: Designed to withstand the high-temperature environment of commercial boiler cabinets for long-term field reliability.
- Critical Calibration: Replaces part number 100113144 and legacy NS2-1333-01 with factory-calibrated sensitivity to prevent nuisance tripping.
Common Installation Questions
What are the signs of a failing 100113144 switch?
Technicians typically observe the inducer motor running continuously without the burner igniting, often accompanied by a "waiting for blower prover" or "air pressure switch open" fault code on the control board.
Is this switch compatible with multi-stage inducer systems?
This specific model is calibrated for applications requiring the 100113144 part number. Always check your specific Lochinvar or A.O. Smith model's technical manual to verify the required pressure set point before installation.
How do I test the prover switch during a service call?
Using a digital manometer, verify that the inducer is pulling the required inches of water column (WC) at the switch port and use a multimeter to check for continuity across the terminals once the set point is achieved.
California Proposition 65 Warning: This product may contain materials known to the State of California to cause cancer, birth defects, or other reproductive harm.
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.
