Lochinvar & A.O. Smith 100233695 Sensor

The Lochinvar & A.O. Smith 100233695 Sensor is a critical OEM well thermostat and outlet sensor designed for precise temperature monitoring in high-efficiency boiler and water heater systems. This genuine replacement component is the identical functional equivalent to part numbers TST2306 and TST2306K, ensuring a seamless drop-in fit for technicians servicing compatible hydronic equipment. Engineered with a 3/8" NPT threaded bulb well connection, the 100233695 provides the integrated control system with accurate real-time data to prevent overheating and optimize thermal cycles. For contractors, using this Lochinvar boiler part is essential for maintaining the safety certifications and operational parameters of A.O. Smith and Lochinvar appliances. Whether you are performing routine maintenance or a critical system repair, this replacement water heater sensor restores reliable communication between the heat exchanger outlet and the primary burner controls, effectively addressing boiler sensor fault codes and ensuring consistent system modulation.

• Universal Compatibility: Serves as the direct OEM replacement for Lochinvar TST2306 and TST2306K, as well as legacy part 100274778.
• Industrial Build Quality: Features a robust bulb well design with 3/8" NPT threading for high-pressure seal integrity within the outlet manifold.
• Precision Monitoring: Provides accurate thermistor feedback to the control board to maintain setpoint accuracy and system safety.
• Contractor Grade: Designed for rapid field installation, reducing downtime during emergency service calls on residential and commercial units.

Common Questions:

Is the 100233695 compatible with older TST series sensors?
Yes, this sensor is the manufacturer-designated replacement for TST2306 and TST2306K. It maintains the same electrical resistance profile and physical dimensions required for these older specifications.

What are the signs that a well thermostat sensor is failing?
Typical indicators include erratic temperature readings on the control display, frequent "limit tripped" errors, or the system failing to modulate based on actual outlet water temperatures.

Does this part include the mounting well?
This SKU is the sensor assembly designed to fit into the 3/8" NPT immersion well. Always verify the integrity of the existing well during installation to ensure optimal thermal transfer.

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.