Lochinvar & A.O. Smith 100340535 Sensor
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Lochinvar & A.O. Smith 100340535 Sensor

Lochinvar & A.O. Smith 100340535 Sensor

The Lochinvar & A.O. Smith 100340535 Sensor is a critical genuine OEM replacement component designed for high-accuracy temperature and pressure monitoring in residential and commercial water heating systems. As the direct replacement for discontinued part 100093973 (and 6911130), this thermistor-style sensor provides the precise resistance feedback necessary for the integrated gas valve and control board to modulate heat output and prevent scale-inducing overheating. A drifting or fouled sensor often triggers water heater error codes or causes the pilot light to go out, making this an essential stock item for service calls involving A.O. Smith and Lochinvar boilers. Built with durable, high-temp resistant materials, it ensures long-term system efficiency and safe operational parameters. For technicians troubleshooting inconsistent hot water or thermal expansion issues, swapping a failing sensor with this factory-spec unit restores the system to its original performance standards without the risk of mismatching resistance curves found in aftermarket alternatives.

Key Benefits:

  • Direct OEM Cross-Reference: Engineered as the official successor to part 100093973, ensuring 100% mechanical and electrical compatibility.
  • Precise Thermal Feedback: Delivers accurate data to the control module to maintain tight temperature differentials and maximize fuel economy.
  • Multi-Functional Sensing: Capable of monitoring both temperature and pressure to protect the tank from high-limit trips and excessive stress.
  • Contractor-Grade Durability: Constructed to withstand the constant thermal cycling and high-heat environments of commercial water heating applications.
  • Error Code Resolution: Resolves common diagnostic faults related to sensor failure, blinking LED status indicators, and erratic burner behavior.

Common Questions:

Is the 100340535 compatible with older 100093973 models?
Yes, this is the official manufacturer-designated direct replacement for 100093973. It is designed to fit the same threading and connector configurations without modification.

What are the signs of a failing temperature sensor?
Watch for inconsistent water temperatures, error codes on the digital display (often indicating "Sensor Open" or "Short"), and the unit failing to ignite despite a functioning pilot and gas supply.

Can I use a multimeter to test this sensor?
Professional technicians can verify functionality by measuring the resistance (Ohms) across the terminals and comparing the readings to the manufacturer’s temperature-resistance chart found in the service manual.

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.

$17.01

Original: $48.59

-65%
Lochinvar & A.O. Smith 100340535 Sensor

$48.59

$17.01

Lochinvar & A.O. Smith 100340535 Sensor

The Lochinvar & A.O. Smith 100340535 Sensor is a critical genuine OEM replacement component designed for high-accuracy temperature and pressure monitoring in residential and commercial water heating systems. As the direct replacement for discontinued part 100093973 (and 6911130), this thermistor-style sensor provides the precise resistance feedback necessary for the integrated gas valve and control board to modulate heat output and prevent scale-inducing overheating. A drifting or fouled sensor often triggers water heater error codes or causes the pilot light to go out, making this an essential stock item for service calls involving A.O. Smith and Lochinvar boilers. Built with durable, high-temp resistant materials, it ensures long-term system efficiency and safe operational parameters. For technicians troubleshooting inconsistent hot water or thermal expansion issues, swapping a failing sensor with this factory-spec unit restores the system to its original performance standards without the risk of mismatching resistance curves found in aftermarket alternatives.

Key Benefits:

  • Direct OEM Cross-Reference: Engineered as the official successor to part 100093973, ensuring 100% mechanical and electrical compatibility.
  • Precise Thermal Feedback: Delivers accurate data to the control module to maintain tight temperature differentials and maximize fuel economy.
  • Multi-Functional Sensing: Capable of monitoring both temperature and pressure to protect the tank from high-limit trips and excessive stress.
  • Contractor-Grade Durability: Constructed to withstand the constant thermal cycling and high-heat environments of commercial water heating applications.
  • Error Code Resolution: Resolves common diagnostic faults related to sensor failure, blinking LED status indicators, and erratic burner behavior.

Common Questions:

Is the 100340535 compatible with older 100093973 models?
Yes, this is the official manufacturer-designated direct replacement for 100093973. It is designed to fit the same threading and connector configurations without modification.

What are the signs of a failing temperature sensor?
Watch for inconsistent water temperatures, error codes on the digital display (often indicating "Sensor Open" or "Short"), and the unit failing to ignite despite a functioning pilot and gas supply.

Can I use a multimeter to test this sensor?
Professional technicians can verify functionality by measuring the resistance (Ohms) across the terminals and comparing the readings to the manufacturer’s temperature-resistance chart found in the service manual.

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

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Description

The Lochinvar & A.O. Smith 100340535 Sensor is a critical genuine OEM replacement component designed for high-accuracy temperature and pressure monitoring in residential and commercial water heating systems. As the direct replacement for discontinued part 100093973 (and 6911130), this thermistor-style sensor provides the precise resistance feedback necessary for the integrated gas valve and control board to modulate heat output and prevent scale-inducing overheating. A drifting or fouled sensor often triggers water heater error codes or causes the pilot light to go out, making this an essential stock item for service calls involving A.O. Smith and Lochinvar boilers. Built with durable, high-temp resistant materials, it ensures long-term system efficiency and safe operational parameters. For technicians troubleshooting inconsistent hot water or thermal expansion issues, swapping a failing sensor with this factory-spec unit restores the system to its original performance standards without the risk of mismatching resistance curves found in aftermarket alternatives.

Key Benefits:

  • Direct OEM Cross-Reference: Engineered as the official successor to part 100093973, ensuring 100% mechanical and electrical compatibility.
  • Precise Thermal Feedback: Delivers accurate data to the control module to maintain tight temperature differentials and maximize fuel economy.
  • Multi-Functional Sensing: Capable of monitoring both temperature and pressure to protect the tank from high-limit trips and excessive stress.
  • Contractor-Grade Durability: Constructed to withstand the constant thermal cycling and high-heat environments of commercial water heating applications.
  • Error Code Resolution: Resolves common diagnostic faults related to sensor failure, blinking LED status indicators, and erratic burner behavior.

Common Questions:

Is the 100340535 compatible with older 100093973 models?
Yes, this is the official manufacturer-designated direct replacement for 100093973. It is designed to fit the same threading and connector configurations without modification.

What are the signs of a failing temperature sensor?
Watch for inconsistent water temperatures, error codes on the digital display (often indicating "Sensor Open" or "Short"), and the unit failing to ignite despite a functioning pilot and gas supply.

Can I use a multimeter to test this sensor?
Professional technicians can verify functionality by measuring the resistance (Ohms) across the terminals and comparing the readings to the manufacturer’s temperature-resistance chart found in the service manual.

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.

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