Lennox 76W34 Limit
The Lennox 76W34 Limit Switch is a high-precision furnace high limit safety control engineered for Lennox HVAC systems. As a critical genuine OEM replacement part (also identified as Lennox 102610-01), this component features a factory-set 200°F limit to protect the heat exchanger from thermal stress. When supply air temperatures exceed the safe threshold, the open-on-rise mechanism interrupts the burner circuit, preventing system damage and ensuring operational safety in residential and light commercial furnaces.
Designed for seamless integration with existing Lennox furnace controls, the 76W34 limit offers an auto-reset function that restores continuity once temperatures return to safe levels. High-performance HVAC technicians rely on this OEM furnace safety switch to resolve common diagnostic codes related to furnace overheating or restricted airflow. Utilizing genuine Lennox parts ensures that the temperature response curve matches the original equipment specifications, maintaining the integrity of the system’s safety string without the risks associated with universal alternatives.
Key Benefits:
- Precise Thermal Protection: Fixed 200-degree Fahrenheit cutout prevents heat exchanger cracking.
- Direct OEM Fit: Exact replacement for Lennox 76W34 and 102610-01, eliminating mounting or wiring modifications.
- System Reliability: Robust bimetal disc construction provides consistent temperature sensing over thousands of cycles.
- Simplified Troubleshooting: Restores proper HVAC safety control logic for systems experiencing premature shutdowns.
Common Questions:
- Why does my Lennox furnace keep tripping the high limit switch? Frequent tripping is often caused by restricted airflow due to a dirty air filter, blocked return ducts, or a failing blower motor, causing internal temperatures to hit the 200°F threshold.
- Is the 76W34 an auto-reset or manual reset switch? The Lennox 76W34 is an auto-reset limit switch, meaning it will close the circuit automatically once the sensor cools down.
- Can I use a higher temperature limit switch instead of the 76W34? No. You must always use the OEM-specified temperature rating (200°F) to ensure the furnace operates within its designed safety parameters.
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: $36.63
-65%$36.63
$12.82Lennox 76W34 Limit
The Lennox 76W34 Limit Switch is a high-precision furnace high limit safety control engineered for Lennox HVAC systems. As a critical genuine OEM replacement part (also identified as Lennox 102610-01), this component features a factory-set 200°F limit to protect the heat exchanger from thermal stress. When supply air temperatures exceed the safe threshold, the open-on-rise mechanism interrupts the burner circuit, preventing system damage and ensuring operational safety in residential and light commercial furnaces.
Designed for seamless integration with existing Lennox furnace controls, the 76W34 limit offers an auto-reset function that restores continuity once temperatures return to safe levels. High-performance HVAC technicians rely on this OEM furnace safety switch to resolve common diagnostic codes related to furnace overheating or restricted airflow. Utilizing genuine Lennox parts ensures that the temperature response curve matches the original equipment specifications, maintaining the integrity of the system’s safety string without the risks associated with universal alternatives.
Key Benefits:
- Precise Thermal Protection: Fixed 200-degree Fahrenheit cutout prevents heat exchanger cracking.
- Direct OEM Fit: Exact replacement for Lennox 76W34 and 102610-01, eliminating mounting or wiring modifications.
- System Reliability: Robust bimetal disc construction provides consistent temperature sensing over thousands of cycles.
- Simplified Troubleshooting: Restores proper HVAC safety control logic for systems experiencing premature shutdowns.
Common Questions:
- Why does my Lennox furnace keep tripping the high limit switch? Frequent tripping is often caused by restricted airflow due to a dirty air filter, blocked return ducts, or a failing blower motor, causing internal temperatures to hit the 200°F threshold.
- Is the 76W34 an auto-reset or manual reset switch? The Lennox 76W34 is an auto-reset limit switch, meaning it will close the circuit automatically once the sensor cools down.
- Can I use a higher temperature limit switch instead of the 76W34? No. You must always use the OEM-specified temperature rating (200°F) to ensure the furnace operates within its designed safety parameters.
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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Description
The Lennox 76W34 Limit Switch is a high-precision furnace high limit safety control engineered for Lennox HVAC systems. As a critical genuine OEM replacement part (also identified as Lennox 102610-01), this component features a factory-set 200°F limit to protect the heat exchanger from thermal stress. When supply air temperatures exceed the safe threshold, the open-on-rise mechanism interrupts the burner circuit, preventing system damage and ensuring operational safety in residential and light commercial furnaces.
Designed for seamless integration with existing Lennox furnace controls, the 76W34 limit offers an auto-reset function that restores continuity once temperatures return to safe levels. High-performance HVAC technicians rely on this OEM furnace safety switch to resolve common diagnostic codes related to furnace overheating or restricted airflow. Utilizing genuine Lennox parts ensures that the temperature response curve matches the original equipment specifications, maintaining the integrity of the system’s safety string without the risks associated with universal alternatives.
Key Benefits:
- Precise Thermal Protection: Fixed 200-degree Fahrenheit cutout prevents heat exchanger cracking.
- Direct OEM Fit: Exact replacement for Lennox 76W34 and 102610-01, eliminating mounting or wiring modifications.
- System Reliability: Robust bimetal disc construction provides consistent temperature sensing over thousands of cycles.
- Simplified Troubleshooting: Restores proper HVAC safety control logic for systems experiencing premature shutdowns.
Common Questions:
- Why does my Lennox furnace keep tripping the high limit switch? Frequent tripping is often caused by restricted airflow due to a dirty air filter, blocked return ducts, or a failing blower motor, causing internal temperatures to hit the 200°F threshold.
- Is the 76W34 an auto-reset or manual reset switch? The Lennox 76W34 is an auto-reset limit switch, meaning it will close the circuit automatically once the sensor cools down.
- Can I use a higher temperature limit switch instead of the 76W34? No. You must always use the OEM-specified temperature rating (200°F) to ensure the furnace operates within its designed safety parameters.
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.
