Description
The Lochinvar & A.O. Smith 100330186 is an OEM replacement flue sensor with grommet, engineered for precise flue gas temperature monitoring in Lochinvar and A.O. Smith water heaters and boilers. This sensor plays a critical role in the unit’s safety and efficiency controls, detecting flue temperatures to help regulate combustion performance and protect the heat exchanger from overtemperature conditions.
Designed as a direct OEM replacement, the 100330186 ensures a proper fit and reliable operation when restoring your equipment to factory specifications. The included grommet provides a secure, sealed mounting point, preventing air infiltration and protecting the sensor connection from vibration and environmental exposure.
Key Features
- OEM replacement flue sensor designed for Lochinvar and A.O. Smith water heaters and boilers
- Monitors flue gas temperatures to support safe and efficient combustion operation
- Includes pre-installed grommet for secure, sealed mounting
- Helps protect heat exchanger and venting components from overtemperature conditions
- Direct drop-in replacement for fast, accurate servicing
- Manufactured to original equipment specifications for reliable long-term performance
Application
- Compatible with select Lochinvar and A.O. Smith water heaters and boilers
- Intended for use by qualified HVAC and plumbing technicians
- Refer to your equipment’s service manual to confirm compatibility before installation
Why Choose OEM Parts?
Using genuine OEM replacement parts like the 100330186 ensures your Lochinvar or A.O. Smith equipment operates within factory-specified parameters. Aftermarket substitutes may not meet the same tolerances, potentially compromising safety controls, warranty coverage, and overall system reliability. Trust the original part for the best results.







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