Description
Lochinvar & A.O. Smith Flame Sensor with Gasket — SKU 100165930
Keep your Lochinvar or A.O. Smith water heater or boiler operating safely and efficiently with this genuine OEM replacement flame sensor. Designed as a direct-fit replacement, this sensor monitors burner flame presence and signals the control system to confirm proper ignition — a critical safety function that prevents unburned fuel from accumulating in the combustion chamber.
Why Replace Your Flame Sensor?
A worn or contaminated flame sensor can cause nuisance lockouts, failed ignition sequences, or unsafe burner operation. Replacing it with the correct OEM part restores accurate flame signal readings and helps your system run reliably season after season.
Key Features
- Genuine OEM replacement part for Lochinvar and A.O. Smith equipment
- Includes matching gasket for a leak-free, properly sealed installation
- Direct-fit design for straightforward drop-in replacement
- Restores accurate flame detection and reliable burner operation
- Helps prevent nuisance lockouts caused by weak or degraded flame signal
- Supports safe combustion system performance
Application
This flame sensor with gasket is an OEM-specified replacement component for select Lochinvar and A.O. Smith water heaters and boilers. Always verify compatibility with your specific model number before installation.
Installation Notes
Shut off all power and gas to the appliance before servicing. Replace the gasket during installation to ensure a proper seal at the sensor mounting point. Consult the equipment service manual for torque specifications and wiring details.







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