Lochinvar & A.O. Smith 100073342 Ignitor

Maintaining reliable ignition in high-efficiency condensing systems requires a Lochinvar 100073342 Ignitor designed specifically for the Crest FB 751-2001 series. This OEM hot surface ignitor is also referenced under part number PLT30008 and is engineered to withstand the intense thermal cycling found in commercial Lochinvar Crest boilers. As a veteran-grade HVAC replacement part, it features a high-density ceramic base and silicon nitride element for superior durability against carbon buildup and oxidation.

The 100073342 ignitor kit includes the critical ignitor gasket and mounting screws, ensuring a gas-tight seal that prevents combustion leaks and maintains proper signal strength for the flame rectification circuit. Technicians should verify boiler ignition compatibility with models FB 751, FB 1001, FB 1251, FB 1501, FB 1751, and FB 2001. Using this genuine Lochinvar igniter ensures your burner assembly fires consistently, reducing nuisance lockouts and optimizing the sequence of operation for A.O. Smith and Lochinvar hydronic systems.

• Specifically engineered for Lochinvar Crest FB 751-2001 commercial boiler models.
• Includes a replacement ignitor gasket to ensure a secure, airtight combustion chamber seal.
• Direct OEM 100073342 part ensures precise fitment and correct electrical resistance for the ignition module.
• Constructed with high-grade materials to improve hot surface ignition reliability in high-demand environments.
• Compatible with various Lochinvar and A.O. Smith high-efficiency heating applications.

Is the gasket included with the 100073342 ignitor?
Yes, this igniter assembly comes complete with the necessary sealing gasket and mounting hardware to ensure a proper installation during service.

Will this ignitor work for all Lochinvar Crest models?
This part is specifically designed for the Crest FB series ranging from 751 to 2001. Always verify your specific model number on the rating plate before installation.

What causes frequent ignitor failure in condensing boilers?
Premature failure is often caused by moisture on the element, improper handling (oil from fingers), or combustion chamber gasket leaks. Using genuine OEM parts helps mitigate these issues.

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.