
Lochinvar & A.O. Smith 100076541 Sensor
The Lochinvar & A.O. Smith 100076541 Flow Sensor EKN70 is a critical OEM component designed for high-efficiency hydronic systems and tankless water heaters. As a veteran-grade HVAC replacement part, this hall-effect water flow sensor provides real-time data to the control board, ensuring the burner fires only when adequate flow is detected. Precision-engineered for compatibility with Lochinvar Knight boilers and specific A.O. Smith water heaters, the EKN70 helps prevent dry-fire conditions and heat exchanger scaling by maintaining tight operational tolerances. Whether you are troubleshooting a "Delta T High" lockout or performing a routine boiler flow sensor replacement, this EKN70 sensor is a direct-fit solution that restores factory-spec modulation and system safety. Its robust construction is optimized for the demanding temperatures found in modern condensing appliances, providing the reliability required for both residential and light commercial applications.
Key Benefits- Precise Flow Monitoring: Delivers accurate gallon-per-minute data to the main control board for optimal gas-to-air ratio modulation.
- OEM Compatibility: Guaranteed fit for Lochinvar and A.O. Smith units, including the EKN70 series, eliminating the risks of generic aftermarket sensors.
- System Protection: Acts as a primary safety device to prevent overheat cycles and potential damage to the high-grade stainless steel heat exchanger.
- Simplified Installation: Designed with standard lead-wire connectors for a fast swap during service calls, minimizing equipment downtime.
What are the symptoms of a failing 100076541 sensor?
Technicians often see "No Flow" codes, frequent cycling, or the burner failing to ignite despite a call for heat or hot water. If the internal turbine is fouled by debris, the 100076541 flow sensor will fail to send the required pulse signal.
Is the EKN70 sensor compatible with Takagi units?
Yes, this sensor cross-references with several Takagi tankless water heater models (such as T-KJr and T-K1S), as many of these brands share OEM internal components for water flow detection.
How do I verify if this part is defective?
Check for DC voltage at the sensor plug while water is moving. If the turbine is spinning but no signal returns to the board, a replacement is necessary to restore the HVACR system to full operation.
This item is not eligible for free shipping.
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: $33.51
-65%$33.51
$11.73Lochinvar & A.O. Smith 100076541 Sensor
The Lochinvar & A.O. Smith 100076541 Flow Sensor EKN70 is a critical OEM component designed for high-efficiency hydronic systems and tankless water heaters. As a veteran-grade HVAC replacement part, this hall-effect water flow sensor provides real-time data to the control board, ensuring the burner fires only when adequate flow is detected. Precision-engineered for compatibility with Lochinvar Knight boilers and specific A.O. Smith water heaters, the EKN70 helps prevent dry-fire conditions and heat exchanger scaling by maintaining tight operational tolerances. Whether you are troubleshooting a "Delta T High" lockout or performing a routine boiler flow sensor replacement, this EKN70 sensor is a direct-fit solution that restores factory-spec modulation and system safety. Its robust construction is optimized for the demanding temperatures found in modern condensing appliances, providing the reliability required for both residential and light commercial applications.
Key Benefits- Precise Flow Monitoring: Delivers accurate gallon-per-minute data to the main control board for optimal gas-to-air ratio modulation.
- OEM Compatibility: Guaranteed fit for Lochinvar and A.O. Smith units, including the EKN70 series, eliminating the risks of generic aftermarket sensors.
- System Protection: Acts as a primary safety device to prevent overheat cycles and potential damage to the high-grade stainless steel heat exchanger.
- Simplified Installation: Designed with standard lead-wire connectors for a fast swap during service calls, minimizing equipment downtime.
What are the symptoms of a failing 100076541 sensor?
Technicians often see "No Flow" codes, frequent cycling, or the burner failing to ignite despite a call for heat or hot water. If the internal turbine is fouled by debris, the 100076541 flow sensor will fail to send the required pulse signal.
Is the EKN70 sensor compatible with Takagi units?
Yes, this sensor cross-references with several Takagi tankless water heater models (such as T-KJr and T-K1S), as many of these brands share OEM internal components for water flow detection.
How do I verify if this part is defective?
Check for DC voltage at the sensor plug while water is moving. If the turbine is spinning but no signal returns to the board, a replacement is necessary to restore the HVACR system to full operation.
This item is not eligible for free shipping.
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 100076541 Flow Sensor EKN70 is a critical OEM component designed for high-efficiency hydronic systems and tankless water heaters. As a veteran-grade HVAC replacement part, this hall-effect water flow sensor provides real-time data to the control board, ensuring the burner fires only when adequate flow is detected. Precision-engineered for compatibility with Lochinvar Knight boilers and specific A.O. Smith water heaters, the EKN70 helps prevent dry-fire conditions and heat exchanger scaling by maintaining tight operational tolerances. Whether you are troubleshooting a "Delta T High" lockout or performing a routine boiler flow sensor replacement, this EKN70 sensor is a direct-fit solution that restores factory-spec modulation and system safety. Its robust construction is optimized for the demanding temperatures found in modern condensing appliances, providing the reliability required for both residential and light commercial applications.
Key Benefits- Precise Flow Monitoring: Delivers accurate gallon-per-minute data to the main control board for optimal gas-to-air ratio modulation.
- OEM Compatibility: Guaranteed fit for Lochinvar and A.O. Smith units, including the EKN70 series, eliminating the risks of generic aftermarket sensors.
- System Protection: Acts as a primary safety device to prevent overheat cycles and potential damage to the high-grade stainless steel heat exchanger.
- Simplified Installation: Designed with standard lead-wire connectors for a fast swap during service calls, minimizing equipment downtime.
What are the symptoms of a failing 100076541 sensor?
Technicians often see "No Flow" codes, frequent cycling, or the burner failing to ignite despite a call for heat or hot water. If the internal turbine is fouled by debris, the 100076541 flow sensor will fail to send the required pulse signal.
Is the EKN70 sensor compatible with Takagi units?
Yes, this sensor cross-references with several Takagi tankless water heater models (such as T-KJr and T-K1S), as many of these brands share OEM internal components for water flow detection.
How do I verify if this part is defective?
Check for DC voltage at the sensor plug while water is moving. If the turbine is spinning but no signal returns to the board, a replacement is necessary to restore the HVACR system to full operation.
This item is not eligible for free shipping.
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.












