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or "Board Not Responding" fault codes
preventing nuisance lockouts and ensuring consistent system operation
Optimal Efficiency: Maintains factory-spec BTU output by providing a clean
Can I use this drain in high-temperature environments
Multi-Voltage Intelligence: Automatically detects 12V or 24V inputs with customizable battery cut-out thresholds
Lochinvar & A.O. Smith 100274734 Flue Sensor 323613-751 or "Board Not Responding" faultThe Lochinvar & A. O. Smith 100274734 Flue Sensor is a critical safety component designed for high efficiency condensing boilers and water heaters. This exhaust temperature sensor monitors the heat levels within the venting system to prevent heat exchanger damage and plastic vent meltdown. Also identified by part number TST2013, this NTC thermistor provides the control board with precise resistance readings, ensuring the unit modulates or shuts down
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