Lochinvar & A.O. Smith 100112851 Ignitor
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Lochinvar & A.O. Smith 100112851 Ignitor

Lochinvar & A.O. Smith 100112851 Ignitor

The Lochinvar and A.O. Smith 100112851 Hot Surface Ignitor serves as a critical direct-replacement component for high-efficiency commercial boilers and water heaters. Engineered to withstand extreme thermal cycling, this silicon nitride ignitor provides reliable ignition for burner assemblies by reaching precise temperatures required for combustion. Technicians should note that the 100112851 replaces the 100165937 and is compatible with various Lochinvar Knight and Armor models, as well as A.O. Smith Cyclone series units. This OEM ignitor assembly features a durable ceramic base and high-temperature lead wires to prevent dielectric failure in demanding mechanical rooms. When performing a Lochinvar boiler repair, ensuring the proper ignitor resistance ohms is maintained is essential for preventing lockout codes and ensuring consistent flame rectification. Designed for 120V operation, this hot surface ignition element is the standard for maintaining peak efficiency in commercial water heater maintenance and preventing costly downtime in hydronic systems.

Key Technical Benefits

  • Direct OEM Replacement: Seamlessly replaces legacy part number 100165937 for exact fitment.
  • Robust Silicon Nitride Construction: Offers superior physical durability and resistance to oxidation compared to standard carbide ignitors.
  • Enhanced Thermal Conductivity: Provides rapid heat-up times to ensure reliable gas ignition and minimize startup cycles.
  • High-Temperature Leads: Equipped with insulated wiring rated for the extreme internal temperatures of the combustion chamber.
  • Broad Compatibility: Validated for use across major Lochinvar Knight and A.O. Smith Cyclone platforms.

Common Service Questions

Does this ignitor replace the 100165937?
Yes, the 100112851 is the updated manufacturer-specified replacement for the older 100165937 ignitor part number.

What causes frequent ignitor failure in commercial boilers?
Common factors include high moisture levels in the combustion air, improper positioning relative to the burner, or oil contamination from skin contact during installation. Always handle by the ceramic base.

How do I troubleshoot a Lochinvar ignition failure?
Check for visual cracks or carbon buildup on the element. Use a multimeter to verify ignitor continuity; an open circuit or resistance outside of manufacturer specs usually indicates the part requires replacement.

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.

$22.28

Original: $63.67

-65%
Lochinvar & A.O. Smith 100112851 Ignitor

$63.67

$22.28

Lochinvar & A.O. Smith 100112851 Ignitor

The Lochinvar and A.O. Smith 100112851 Hot Surface Ignitor serves as a critical direct-replacement component for high-efficiency commercial boilers and water heaters. Engineered to withstand extreme thermal cycling, this silicon nitride ignitor provides reliable ignition for burner assemblies by reaching precise temperatures required for combustion. Technicians should note that the 100112851 replaces the 100165937 and is compatible with various Lochinvar Knight and Armor models, as well as A.O. Smith Cyclone series units. This OEM ignitor assembly features a durable ceramic base and high-temperature lead wires to prevent dielectric failure in demanding mechanical rooms. When performing a Lochinvar boiler repair, ensuring the proper ignitor resistance ohms is maintained is essential for preventing lockout codes and ensuring consistent flame rectification. Designed for 120V operation, this hot surface ignition element is the standard for maintaining peak efficiency in commercial water heater maintenance and preventing costly downtime in hydronic systems.

Key Technical Benefits

  • Direct OEM Replacement: Seamlessly replaces legacy part number 100165937 for exact fitment.
  • Robust Silicon Nitride Construction: Offers superior physical durability and resistance to oxidation compared to standard carbide ignitors.
  • Enhanced Thermal Conductivity: Provides rapid heat-up times to ensure reliable gas ignition and minimize startup cycles.
  • High-Temperature Leads: Equipped with insulated wiring rated for the extreme internal temperatures of the combustion chamber.
  • Broad Compatibility: Validated for use across major Lochinvar Knight and A.O. Smith Cyclone platforms.

Common Service Questions

Does this ignitor replace the 100165937?
Yes, the 100112851 is the updated manufacturer-specified replacement for the older 100165937 ignitor part number.

What causes frequent ignitor failure in commercial boilers?
Common factors include high moisture levels in the combustion air, improper positioning relative to the burner, or oil contamination from skin contact during installation. Always handle by the ceramic base.

How do I troubleshoot a Lochinvar ignition failure?
Check for visual cracks or carbon buildup on the element. Use a multimeter to verify ignitor continuity; an open circuit or resistance outside of manufacturer specs usually indicates the part requires replacement.

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.

Product Information

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Description

The Lochinvar and A.O. Smith 100112851 Hot Surface Ignitor serves as a critical direct-replacement component for high-efficiency commercial boilers and water heaters. Engineered to withstand extreme thermal cycling, this silicon nitride ignitor provides reliable ignition for burner assemblies by reaching precise temperatures required for combustion. Technicians should note that the 100112851 replaces the 100165937 and is compatible with various Lochinvar Knight and Armor models, as well as A.O. Smith Cyclone series units. This OEM ignitor assembly features a durable ceramic base and high-temperature lead wires to prevent dielectric failure in demanding mechanical rooms. When performing a Lochinvar boiler repair, ensuring the proper ignitor resistance ohms is maintained is essential for preventing lockout codes and ensuring consistent flame rectification. Designed for 120V operation, this hot surface ignition element is the standard for maintaining peak efficiency in commercial water heater maintenance and preventing costly downtime in hydronic systems.

Key Technical Benefits

  • Direct OEM Replacement: Seamlessly replaces legacy part number 100165937 for exact fitment.
  • Robust Silicon Nitride Construction: Offers superior physical durability and resistance to oxidation compared to standard carbide ignitors.
  • Enhanced Thermal Conductivity: Provides rapid heat-up times to ensure reliable gas ignition and minimize startup cycles.
  • High-Temperature Leads: Equipped with insulated wiring rated for the extreme internal temperatures of the combustion chamber.
  • Broad Compatibility: Validated for use across major Lochinvar Knight and A.O. Smith Cyclone platforms.

Common Service Questions

Does this ignitor replace the 100165937?
Yes, the 100112851 is the updated manufacturer-specified replacement for the older 100165937 ignitor part number.

What causes frequent ignitor failure in commercial boilers?
Common factors include high moisture levels in the combustion air, improper positioning relative to the burner, or oil contamination from skin contact during installation. Always handle by the ceramic base.

How do I troubleshoot a Lochinvar ignition failure?
Check for visual cracks or carbon buildup on the element. Use a multimeter to verify ignitor continuity; an open circuit or resistance outside of manufacturer specs usually indicates the part requires replacement.

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.