Lochinvar & A.O. Smith 100208565 Sensor
The Lochinvar & A.O. Smith 100208565 Sensor is a critical OEM replacement part designed for high-performance inlet water temperature monitoring. As an immersion sensor with a 1/4-inch G thread connection, this component provides real-time data to the water heater control board, ensuring precise modulation and preventing high-limit trips. Specifically engineered for Lochinvar WA125 through WA200 wall-mount boilers and compatible A.O. Smith water heaters, it replaces legacy part numbers TST20037K, 100170564, and TST20037. For technicians service-calling residential or light commercial systems, this NTC thermistor is essential for resolving E6 error codes or inconsistent domestic hot water (DHW) output. Utilizing genuine Lochinvar parts ensures the HVAC temperature sensor maintains factory-spec resistance curves, which is vital for the combustion control system to accurately calculate the Delta T across the heat exchanger. Heavy-duty immersion probe construction allows for direct contact with the water stream for the fastest response times available in the field.
Key Benefits
- Direct OEM Compatibility: Engineered specifically for Lochinvar SLA151-100, SLA201-100, and WAN200PM models to ensure seamless integration with the existing wiring harness.
- System Efficiency: Accurate inlet water sensor readings allow the boiler to modulate firing rates correctly, reducing short-cycling and fuel consumption.
- Rapid Diagnostics: Simplifies troubleshooting for units displaying sensor-related faults or those failing to reach setpoint temperatures.
- Durable Construction: High-grade immersion sensor materials resist mineral buildup and corrosion, maintaining signal integrity over long service intervals.
Common Questions
Which models are compatible with the 100208565 sensor?
This part is the primary inlet water sensor for Lochinvar WA125, WA150, WA200, and A.O. Smith residential wall-mount water heaters. Always verify your specific serial number against the OEM parts list to confirm the fit.
What are the symptoms of a failing inlet water temperature sensor?
Common signs include erratic burner behavior, error codes indicating a temperature differential fault, or the system failing to modulate higher than 50% capacity due to inaccurate HVAC sensor feedback.
Can I test this sensor with a multimeter?
Yes, technicians can measure the resistance (ohms) across the terminals. Compare the reading to the 10k or specific NTC thermistor resistance chart provided in the Lochinvar service handbook for the current ambient temperature.
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.
Original: $78.07
-65%$78.07
$27.32Lochinvar & A.O. Smith 100208565 Sensor
The Lochinvar & A.O. Smith 100208565 Sensor is a critical OEM replacement part designed for high-performance inlet water temperature monitoring. As an immersion sensor with a 1/4-inch G thread connection, this component provides real-time data to the water heater control board, ensuring precise modulation and preventing high-limit trips. Specifically engineered for Lochinvar WA125 through WA200 wall-mount boilers and compatible A.O. Smith water heaters, it replaces legacy part numbers TST20037K, 100170564, and TST20037. For technicians service-calling residential or light commercial systems, this NTC thermistor is essential for resolving E6 error codes or inconsistent domestic hot water (DHW) output. Utilizing genuine Lochinvar parts ensures the HVAC temperature sensor maintains factory-spec resistance curves, which is vital for the combustion control system to accurately calculate the Delta T across the heat exchanger. Heavy-duty immersion probe construction allows for direct contact with the water stream for the fastest response times available in the field.
Key Benefits
- Direct OEM Compatibility: Engineered specifically for Lochinvar SLA151-100, SLA201-100, and WAN200PM models to ensure seamless integration with the existing wiring harness.
- System Efficiency: Accurate inlet water sensor readings allow the boiler to modulate firing rates correctly, reducing short-cycling and fuel consumption.
- Rapid Diagnostics: Simplifies troubleshooting for units displaying sensor-related faults or those failing to reach setpoint temperatures.
- Durable Construction: High-grade immersion sensor materials resist mineral buildup and corrosion, maintaining signal integrity over long service intervals.
Common Questions
Which models are compatible with the 100208565 sensor?
This part is the primary inlet water sensor for Lochinvar WA125, WA150, WA200, and A.O. Smith residential wall-mount water heaters. Always verify your specific serial number against the OEM parts list to confirm the fit.
What are the symptoms of a failing inlet water temperature sensor?
Common signs include erratic burner behavior, error codes indicating a temperature differential fault, or the system failing to modulate higher than 50% capacity due to inaccurate HVAC sensor feedback.
Can I test this sensor with a multimeter?
Yes, technicians can measure the resistance (ohms) across the terminals. Compare the reading to the 10k or specific NTC thermistor resistance chart provided in the Lochinvar service handbook for the current ambient temperature.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Lochinvar & A.O. Smith 100208565 Sensor is a critical OEM replacement part designed for high-performance inlet water temperature monitoring. As an immersion sensor with a 1/4-inch G thread connection, this component provides real-time data to the water heater control board, ensuring precise modulation and preventing high-limit trips. Specifically engineered for Lochinvar WA125 through WA200 wall-mount boilers and compatible A.O. Smith water heaters, it replaces legacy part numbers TST20037K, 100170564, and TST20037. For technicians service-calling residential or light commercial systems, this NTC thermistor is essential for resolving E6 error codes or inconsistent domestic hot water (DHW) output. Utilizing genuine Lochinvar parts ensures the HVAC temperature sensor maintains factory-spec resistance curves, which is vital for the combustion control system to accurately calculate the Delta T across the heat exchanger. Heavy-duty immersion probe construction allows for direct contact with the water stream for the fastest response times available in the field.
Key Benefits
- Direct OEM Compatibility: Engineered specifically for Lochinvar SLA151-100, SLA201-100, and WAN200PM models to ensure seamless integration with the existing wiring harness.
- System Efficiency: Accurate inlet water sensor readings allow the boiler to modulate firing rates correctly, reducing short-cycling and fuel consumption.
- Rapid Diagnostics: Simplifies troubleshooting for units displaying sensor-related faults or those failing to reach setpoint temperatures.
- Durable Construction: High-grade immersion sensor materials resist mineral buildup and corrosion, maintaining signal integrity over long service intervals.
Common Questions
Which models are compatible with the 100208565 sensor?
This part is the primary inlet water sensor for Lochinvar WA125, WA150, WA200, and A.O. Smith residential wall-mount water heaters. Always verify your specific serial number against the OEM parts list to confirm the fit.
What are the symptoms of a failing inlet water temperature sensor?
Common signs include erratic burner behavior, error codes indicating a temperature differential fault, or the system failing to modulate higher than 50% capacity due to inaccurate HVAC sensor feedback.
Can I test this sensor with a multimeter?
Yes, technicians can measure the resistance (ohms) across the terminals. Compare the reading to the 10k or specific NTC thermistor resistance chart provided in the Lochinvar service handbook for the current ambient temperature.
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.
