
Lochinvar & A.O. Smith 100165925 Ignitor
The Lochinvar & A.O. Smith 100165925 Ignitor is a critical OEM replacement part designed for high-efficiency condensing boilers and commercial water heaters. This hot surface ignitor kit is engineered for precision performance in the Lochinvar Knight series (WHB 55 through 399) and A.O. Smith high-input systems. The assembly utilizes high-grade ceramic insulation and a robust heating element to ensure consistent spark ignition across varying gas pressures and combustion environments. By maintaining the correct air-fuel ratio ignition point, this component prevents delayed ignition cycles and boiler lockout codes. The kit includes a specialized high-temperature gasket for seal integrity, essential for preventing flue gas leakage and maintaining the pressurized integrity of the mechanical burner assembly. This part is a direct cross-reference for legacy numbers PLT20006, PLT30005, and 100165886, ensuring exact physical fitment and electrical compatibility for HVAC technicians performing routine maintenance or emergency repairs.
Key Benefits:- OEM Compatibility: Exact hot surface ignitor replacement for Lochinvar WHN111 and Knight WHB series models.
- Complete Kit: Includes the ignitor with gasket to facilitate a complete seal and eliminate the need for secondary sourcing.
- Operational Reliability: Specifically calibrated to interface with Lochinvar integrated control boards for rapid flame rectification.
- Durable Construction: Built to withstand the thermal cycling and high-moisture environments characteristic of condensing heating systems.
- What causes this ignitor to fail? Failures are typically due to carbon buildup, hairline fractures in the ceramic, or resistance drift from long-term thermal fatigue.
- Is the gasket necessary for installation? Yes, the gasket ensures a gastight seal at the mounting flange, preventing dangerous CO leaks and ensuring proper combustion efficiency.
- Will this fix a 'No Flame' error? While a new 100165925 ignitor often resolves ignition failures, technicians should also verify the flame sensor and gas valve manifold pressure.
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: $48.80
-65%$48.80
$17.08Lochinvar & A.O. Smith 100165925 Ignitor
The Lochinvar & A.O. Smith 100165925 Ignitor is a critical OEM replacement part designed for high-efficiency condensing boilers and commercial water heaters. This hot surface ignitor kit is engineered for precision performance in the Lochinvar Knight series (WHB 55 through 399) and A.O. Smith high-input systems. The assembly utilizes high-grade ceramic insulation and a robust heating element to ensure consistent spark ignition across varying gas pressures and combustion environments. By maintaining the correct air-fuel ratio ignition point, this component prevents delayed ignition cycles and boiler lockout codes. The kit includes a specialized high-temperature gasket for seal integrity, essential for preventing flue gas leakage and maintaining the pressurized integrity of the mechanical burner assembly. This part is a direct cross-reference for legacy numbers PLT20006, PLT30005, and 100165886, ensuring exact physical fitment and electrical compatibility for HVAC technicians performing routine maintenance or emergency repairs.
Key Benefits:- OEM Compatibility: Exact hot surface ignitor replacement for Lochinvar WHN111 and Knight WHB series models.
- Complete Kit: Includes the ignitor with gasket to facilitate a complete seal and eliminate the need for secondary sourcing.
- Operational Reliability: Specifically calibrated to interface with Lochinvar integrated control boards for rapid flame rectification.
- Durable Construction: Built to withstand the thermal cycling and high-moisture environments characteristic of condensing heating systems.
- What causes this ignitor to fail? Failures are typically due to carbon buildup, hairline fractures in the ceramic, or resistance drift from long-term thermal fatigue.
- Is the gasket necessary for installation? Yes, the gasket ensures a gastight seal at the mounting flange, preventing dangerous CO leaks and ensuring proper combustion efficiency.
- Will this fix a 'No Flame' error? While a new 100165925 ignitor often resolves ignition failures, technicians should also verify the flame sensor and gas valve manifold pressure.
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 100165925 Ignitor is a critical OEM replacement part designed for high-efficiency condensing boilers and commercial water heaters. This hot surface ignitor kit is engineered for precision performance in the Lochinvar Knight series (WHB 55 through 399) and A.O. Smith high-input systems. The assembly utilizes high-grade ceramic insulation and a robust heating element to ensure consistent spark ignition across varying gas pressures and combustion environments. By maintaining the correct air-fuel ratio ignition point, this component prevents delayed ignition cycles and boiler lockout codes. The kit includes a specialized high-temperature gasket for seal integrity, essential for preventing flue gas leakage and maintaining the pressurized integrity of the mechanical burner assembly. This part is a direct cross-reference for legacy numbers PLT20006, PLT30005, and 100165886, ensuring exact physical fitment and electrical compatibility for HVAC technicians performing routine maintenance or emergency repairs.
Key Benefits:- OEM Compatibility: Exact hot surface ignitor replacement for Lochinvar WHN111 and Knight WHB series models.
- Complete Kit: Includes the ignitor with gasket to facilitate a complete seal and eliminate the need for secondary sourcing.
- Operational Reliability: Specifically calibrated to interface with Lochinvar integrated control boards for rapid flame rectification.
- Durable Construction: Built to withstand the thermal cycling and high-moisture environments characteristic of condensing heating systems.
- What causes this ignitor to fail? Failures are typically due to carbon buildup, hairline fractures in the ceramic, or resistance drift from long-term thermal fatigue.
- Is the gasket necessary for installation? Yes, the gasket ensures a gastight seal at the mounting flange, preventing dangerous CO leaks and ensuring proper combustion efficiency.
- Will this fix a 'No Flame' error? While a new 100165925 ignitor often resolves ignition failures, technicians should also verify the flame sensor and gas valve manifold pressure.
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.












