Description
Lochinvar & A.O. Smith 100278783 Flame Sensor with Gasket
The Lochinvar & A.O. Smith 100278783 is an OEM replacement flame sensor complete with gasket, engineered specifically for compatible AOS water heaters and boilers. This precision component plays a critical role in your appliance’s combustion safety system — detecting the presence of a burner flame and signaling the control board to confirm safe ignition. When the sensor fails or degrades, the unit may lock out on a no-flame fault, causing nuisance shutdowns and loss of heat or hot water. Replacing it with the correct OEM part restores reliable, accurate flame detection and gets your system back online quickly.
Key Features
- OEM replacement flame sensor designed for Lochinvar and A.O. Smith AOS equipment
- Includes matching gasket for a leak-free, secure installation
- Ensures accurate flame signal to the appliance control board
- Helps prevent nuisance lockouts caused by weak or failed flame sensing
- Direct OEM fit — no modifications required
- Supports proper combustion safety and system reliability
Application
This flame sensor with gasket is intended for use in compatible Lochinvar and A.O. Smith AOS-series water heaters and boilers. Always verify compatibility with your specific model number before installation. Refer to the equipment service manual for proper installation procedures and torque specifications.
Why Choose OEM Parts?
Using genuine OEM replacement components like the 100278783 ensures the part meets the original manufacturer’s performance and safety standards. Aftermarket substitutes may not provide the same signal accuracy or fit, potentially leading to continued lockouts or voided warranties. Trust OEM quality for critical combustion safety components.
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