Lochinvar & A.O. Smith 100112430 Switch
The Lochinvar & A.O. Smith 100112430 Switch is a factory-specified blocked inlet pressure switch designed to maintain critical safety standards in high-efficiency boilers and water heaters. As a direct OEM replacement part, this component is calibrated to monitor the combustion air inlet for obstructions. When the 100112430 pressure switch detects a restriction in airflow that could lead to incomplete combustion or hazardous venting conditions, it interrupts the ignition sequence to protect the heat exchanger and burner assembly. Designed for both residential and commercial Lochinvar heating equipment, this HVAC safety switch ensures that the system only operates under optimal pneumatic conditions. Field technicians often identify a failing blocked inlet switch when the control board throws a persistent "blocked inlet" or "pressure switch open" fault code despite clear venting. Integrating a genuine A.O. Smith part ensures seamless mechanical compatibility and restores the precise differential pressure setpoints required for safe burner firing and consistent thermal performance.
Key Benefits- OEM Precision: Factory-calibrated to exact differential pressure specs for Lochinvar and A.O. Smith systems.
- System Protection: Immediately halts operation if a blocked combustion air inlet is detected, preventing equipment damage.
- Reliable Construction: Built with high-grade materials to withstand the rigorous cycling of modern condensing boilers.
- Direct Fit: Eliminates the risks associated with generic aftermarket switches, ensuring correct electrical terminations and hose connections.
What causes a blocked inlet switch to trip?
This switch usually trips due to physical obstructions in the air intake pipe, such as debris, bird nests, or heavy frost. In some cases, a cracked sensing tube or a failing blower assembly can prevent the switch from closing.
How can I tell if the 100112430 switch is defective?
A veteran tech will check for continuity across the terminals while applying a slight vacuum. If the switch remains open under the specified pressure or the internal diaphragm fails to click, a replacement is necessary to restore water heater functionality.
Is this switch compatible with all Lochinvar models?
While this is a common Lochinvar and A.O. Smith part, it is dedicated to specific models like the GPVH series and certain high-efficiency power vent units. Always verify your specific model and serial number before installation.
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: $41.05
-65%$41.05
$14.37Lochinvar & A.O. Smith 100112430 Switch
The Lochinvar & A.O. Smith 100112430 Switch is a factory-specified blocked inlet pressure switch designed to maintain critical safety standards in high-efficiency boilers and water heaters. As a direct OEM replacement part, this component is calibrated to monitor the combustion air inlet for obstructions. When the 100112430 pressure switch detects a restriction in airflow that could lead to incomplete combustion or hazardous venting conditions, it interrupts the ignition sequence to protect the heat exchanger and burner assembly. Designed for both residential and commercial Lochinvar heating equipment, this HVAC safety switch ensures that the system only operates under optimal pneumatic conditions. Field technicians often identify a failing blocked inlet switch when the control board throws a persistent "blocked inlet" or "pressure switch open" fault code despite clear venting. Integrating a genuine A.O. Smith part ensures seamless mechanical compatibility and restores the precise differential pressure setpoints required for safe burner firing and consistent thermal performance.
Key Benefits- OEM Precision: Factory-calibrated to exact differential pressure specs for Lochinvar and A.O. Smith systems.
- System Protection: Immediately halts operation if a blocked combustion air inlet is detected, preventing equipment damage.
- Reliable Construction: Built with high-grade materials to withstand the rigorous cycling of modern condensing boilers.
- Direct Fit: Eliminates the risks associated with generic aftermarket switches, ensuring correct electrical terminations and hose connections.
What causes a blocked inlet switch to trip?
This switch usually trips due to physical obstructions in the air intake pipe, such as debris, bird nests, or heavy frost. In some cases, a cracked sensing tube or a failing blower assembly can prevent the switch from closing.
How can I tell if the 100112430 switch is defective?
A veteran tech will check for continuity across the terminals while applying a slight vacuum. If the switch remains open under the specified pressure or the internal diaphragm fails to click, a replacement is necessary to restore water heater functionality.
Is this switch compatible with all Lochinvar models?
While this is a common Lochinvar and A.O. Smith part, it is dedicated to specific models like the GPVH series and certain high-efficiency power vent units. Always verify your specific model and serial number before installation.
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 100112430 Switch is a factory-specified blocked inlet pressure switch designed to maintain critical safety standards in high-efficiency boilers and water heaters. As a direct OEM replacement part, this component is calibrated to monitor the combustion air inlet for obstructions. When the 100112430 pressure switch detects a restriction in airflow that could lead to incomplete combustion or hazardous venting conditions, it interrupts the ignition sequence to protect the heat exchanger and burner assembly. Designed for both residential and commercial Lochinvar heating equipment, this HVAC safety switch ensures that the system only operates under optimal pneumatic conditions. Field technicians often identify a failing blocked inlet switch when the control board throws a persistent "blocked inlet" or "pressure switch open" fault code despite clear venting. Integrating a genuine A.O. Smith part ensures seamless mechanical compatibility and restores the precise differential pressure setpoints required for safe burner firing and consistent thermal performance.
Key Benefits- OEM Precision: Factory-calibrated to exact differential pressure specs for Lochinvar and A.O. Smith systems.
- System Protection: Immediately halts operation if a blocked combustion air inlet is detected, preventing equipment damage.
- Reliable Construction: Built with high-grade materials to withstand the rigorous cycling of modern condensing boilers.
- Direct Fit: Eliminates the risks associated with generic aftermarket switches, ensuring correct electrical terminations and hose connections.
What causes a blocked inlet switch to trip?
This switch usually trips due to physical obstructions in the air intake pipe, such as debris, bird nests, or heavy frost. In some cases, a cracked sensing tube or a failing blower assembly can prevent the switch from closing.
How can I tell if the 100112430 switch is defective?
A veteran tech will check for continuity across the terminals while applying a slight vacuum. If the switch remains open under the specified pressure or the internal diaphragm fails to click, a replacement is necessary to restore water heater functionality.
Is this switch compatible with all Lochinvar models?
While this is a common Lochinvar and A.O. Smith part, it is dedicated to specific models like the GPVH series and certain high-efficiency power vent units. Always verify your specific model and serial number before installation.
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.
