Lochinvar & A.O. Smith 100208391 Pressure Switch
The Lochinvar & A.O. Smith 100208391 Pressure Switch is a mission-critical safety component designed for precise pressure monitoring within high-efficiency boilers and water heaters. Engineered to meet rigorous OEM specifications, this 0.21" W.C. air pressure switch functions as a blower prover, ensuring the combustion blower is generating sufficient airflow before allowing the ignition sequence to proceed. By supervising the differential pressure between the combustion chamber and the venting system, it effectively mitigates risks associated with blocked flues or failed inducer motors.
This genuine OEM replacement part is built with a high-sensitivity diaphragm and robust electrical contacts to maintain signal integrity in demanding mechanical environments. For technicians in the field, this switch serves as a direct-fit solution for various Lochinvar and A.O. Smith models, including the Cyclone BTH series and specialized commercial water heaters. Integrating a new 100208391 inductive pressure switch ensures that the system satisfies safety loops, preventing nuisance lockouts and maintaining peak operational efficiency.
Key Benefits:
- Precise Calibration: Factory-set at 0.21 inch water column to ensure accurate air proving and safe ignition cycles.
- Enhanced System Safety: Actively monitors for venting obstructions or blower failures to prevent hazardous operating conditions.
- OEM Compatibility: Designed specifically for Lochinvar and A.O. Smith hydronic systems, ensuring seamless mechanical and electrical integration.
- Industrial Build Quality: Features a resilient diaphragm housing capable of withstanding the thermal and pressure fluctuations common in commercial HVAC settings.
- Verified Performance: Critical for troubleshooting pressure switch stuck open errors and restoring reliable boiler operation.
Common Questions:
What are the signs that the 100208391 pressure switch needs replacement?
If your unit fails to ignite and displays a "Blocked Vent" or "Pressure Switch Failed to Close" error code, a faulty switch is often the culprit. Technicians should use a manometer to verify if the 0.21" W.C. threshold is being met during the blower pre-purge phase.
Is this switch compatible with residential power-vented water heaters?
Yes, while frequently used in commercial applications like the Cyclone series, it fits any A.O. Smith or Lochinvar appliance specifically calling for the 100208391 air pressure switch. Always cross-reference the part number on your existing component.
How do I test this switch during a service call?
Using a digital manometer and a multimeter, check for continuity across the terminals when the blower is at full speed. The contacts should close promptly once the air pressure exceeds the 0.21" W.C. set point.
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: $135.88
-65%$135.88
$47.56Lochinvar & A.O. Smith 100208391 Pressure Switch
The Lochinvar & A.O. Smith 100208391 Pressure Switch is a mission-critical safety component designed for precise pressure monitoring within high-efficiency boilers and water heaters. Engineered to meet rigorous OEM specifications, this 0.21" W.C. air pressure switch functions as a blower prover, ensuring the combustion blower is generating sufficient airflow before allowing the ignition sequence to proceed. By supervising the differential pressure between the combustion chamber and the venting system, it effectively mitigates risks associated with blocked flues or failed inducer motors.
This genuine OEM replacement part is built with a high-sensitivity diaphragm and robust electrical contacts to maintain signal integrity in demanding mechanical environments. For technicians in the field, this switch serves as a direct-fit solution for various Lochinvar and A.O. Smith models, including the Cyclone BTH series and specialized commercial water heaters. Integrating a new 100208391 inductive pressure switch ensures that the system satisfies safety loops, preventing nuisance lockouts and maintaining peak operational efficiency.
Key Benefits:
- Precise Calibration: Factory-set at 0.21 inch water column to ensure accurate air proving and safe ignition cycles.
- Enhanced System Safety: Actively monitors for venting obstructions or blower failures to prevent hazardous operating conditions.
- OEM Compatibility: Designed specifically for Lochinvar and A.O. Smith hydronic systems, ensuring seamless mechanical and electrical integration.
- Industrial Build Quality: Features a resilient diaphragm housing capable of withstanding the thermal and pressure fluctuations common in commercial HVAC settings.
- Verified Performance: Critical for troubleshooting pressure switch stuck open errors and restoring reliable boiler operation.
Common Questions:
What are the signs that the 100208391 pressure switch needs replacement?
If your unit fails to ignite and displays a "Blocked Vent" or "Pressure Switch Failed to Close" error code, a faulty switch is often the culprit. Technicians should use a manometer to verify if the 0.21" W.C. threshold is being met during the blower pre-purge phase.
Is this switch compatible with residential power-vented water heaters?
Yes, while frequently used in commercial applications like the Cyclone series, it fits any A.O. Smith or Lochinvar appliance specifically calling for the 100208391 air pressure switch. Always cross-reference the part number on your existing component.
How do I test this switch during a service call?
Using a digital manometer and a multimeter, check for continuity across the terminals when the blower is at full speed. The contacts should close promptly once the air pressure exceeds the 0.21" W.C. set point.
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
The Lochinvar & A.O. Smith 100208391 Pressure Switch is a mission-critical safety component designed for precise pressure monitoring within high-efficiency boilers and water heaters. Engineered to meet rigorous OEM specifications, this 0.21" W.C. air pressure switch functions as a blower prover, ensuring the combustion blower is generating sufficient airflow before allowing the ignition sequence to proceed. By supervising the differential pressure between the combustion chamber and the venting system, it effectively mitigates risks associated with blocked flues or failed inducer motors.
This genuine OEM replacement part is built with a high-sensitivity diaphragm and robust electrical contacts to maintain signal integrity in demanding mechanical environments. For technicians in the field, this switch serves as a direct-fit solution for various Lochinvar and A.O. Smith models, including the Cyclone BTH series and specialized commercial water heaters. Integrating a new 100208391 inductive pressure switch ensures that the system satisfies safety loops, preventing nuisance lockouts and maintaining peak operational efficiency.
Key Benefits:
- Precise Calibration: Factory-set at 0.21 inch water column to ensure accurate air proving and safe ignition cycles.
- Enhanced System Safety: Actively monitors for venting obstructions or blower failures to prevent hazardous operating conditions.
- OEM Compatibility: Designed specifically for Lochinvar and A.O. Smith hydronic systems, ensuring seamless mechanical and electrical integration.
- Industrial Build Quality: Features a resilient diaphragm housing capable of withstanding the thermal and pressure fluctuations common in commercial HVAC settings.
- Verified Performance: Critical for troubleshooting pressure switch stuck open errors and restoring reliable boiler operation.
Common Questions:
What are the signs that the 100208391 pressure switch needs replacement?
If your unit fails to ignite and displays a "Blocked Vent" or "Pressure Switch Failed to Close" error code, a faulty switch is often the culprit. Technicians should use a manometer to verify if the 0.21" W.C. threshold is being met during the blower pre-purge phase.
Is this switch compatible with residential power-vented water heaters?
Yes, while frequently used in commercial applications like the Cyclone series, it fits any A.O. Smith or Lochinvar appliance specifically calling for the 100208391 air pressure switch. Always cross-reference the part number on your existing component.
How do I test this switch during a service call?
Using a digital manometer and a multimeter, check for continuity across the terminals when the blower is at full speed. The contacts should close promptly once the air pressure exceeds the 0.21" W.C. set point.
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.
