Lennox 97L01 Limit Switch
The Lennox 97L01 Limit Switch is a critical OEM replacement part engineered for precise thermal regulation in Lennox gas furnaces and air handlers. This L200-30F limit switch is designed to open the electrical circuit if the heat exchanger temperature exceeds its 200°F setpoint, preventing mechanical failure and ensuring safe combustion cycles. With a 30°F differential for automatic reset, it provides consistent high-limit protection and prevents nuisance tripping in high-static pressure environments. Field technicians often source the Lennox 97L01 to resolve furnace limit switch tripping issues or diagnostic codes related to primary limit circuit faults. Utilizing genuine Lennox heater parts ensures exact mounting footprints and terminal alignments, maintaining the original AHRI-rated performance of the HVAC system. This furnace temperature limit control is compatible with a wide range of G-series and residential furnace models, making it a staple for service vans performing emergency heating repairs.
Key Benefits:
- L200-30F Specifications: Factory calibrated to open at 200°F and reset at 170°F for accurate thermal cycling.
- Direct OEM Fit: Eliminates the need for bracket modifications or wire splicing during field installation.
- Critical Safety Protection: Monitors heat exchanger surface temperatures to prevent overheating and potential component fatigue.
- Broad Compatibility: Replaces multiple legacy Lennox part numbers in residential gas furnaces and modular heating units.
Common Questions:
How do I know if my Lennox 97L01 limit switch is bad?
If your furnace blower runs continuously while the burners fail to ignite, or if you measure an open circuit across the limit terminals during a call for heat while the heat exchanger is cool, the switch typically requires replacement.
Can I use a universal limit switch instead of the 97L01?
While universal switches exist, using the Lennox OEM 97L01 ensures the specific temperature rise and airflow requirements of the heat exchanger are met, maintaining system safety and efficiency.
What causes a limit switch to trip repeatedly?
Frequent tripping is often caused by restricted airflow, such as a clogged 1-inch pleated filter, an oversized blower motor setting, or blocked return air grilles, forcing the L200-30F to engage.
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: $25.91
-65%$25.91
$9.07Lennox 97L01 Limit Switch
The Lennox 97L01 Limit Switch is a critical OEM replacement part engineered for precise thermal regulation in Lennox gas furnaces and air handlers. This L200-30F limit switch is designed to open the electrical circuit if the heat exchanger temperature exceeds its 200°F setpoint, preventing mechanical failure and ensuring safe combustion cycles. With a 30°F differential for automatic reset, it provides consistent high-limit protection and prevents nuisance tripping in high-static pressure environments. Field technicians often source the Lennox 97L01 to resolve furnace limit switch tripping issues or diagnostic codes related to primary limit circuit faults. Utilizing genuine Lennox heater parts ensures exact mounting footprints and terminal alignments, maintaining the original AHRI-rated performance of the HVAC system. This furnace temperature limit control is compatible with a wide range of G-series and residential furnace models, making it a staple for service vans performing emergency heating repairs.
Key Benefits:
- L200-30F Specifications: Factory calibrated to open at 200°F and reset at 170°F for accurate thermal cycling.
- Direct OEM Fit: Eliminates the need for bracket modifications or wire splicing during field installation.
- Critical Safety Protection: Monitors heat exchanger surface temperatures to prevent overheating and potential component fatigue.
- Broad Compatibility: Replaces multiple legacy Lennox part numbers in residential gas furnaces and modular heating units.
Common Questions:
How do I know if my Lennox 97L01 limit switch is bad?
If your furnace blower runs continuously while the burners fail to ignite, or if you measure an open circuit across the limit terminals during a call for heat while the heat exchanger is cool, the switch typically requires replacement.
Can I use a universal limit switch instead of the 97L01?
While universal switches exist, using the Lennox OEM 97L01 ensures the specific temperature rise and airflow requirements of the heat exchanger are met, maintaining system safety and efficiency.
What causes a limit switch to trip repeatedly?
Frequent tripping is often caused by restricted airflow, such as a clogged 1-inch pleated filter, an oversized blower motor setting, or blocked return air grilles, forcing the L200-30F to engage.
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 97L01 Limit Switch is a critical OEM replacement part engineered for precise thermal regulation in Lennox gas furnaces and air handlers. This L200-30F limit switch is designed to open the electrical circuit if the heat exchanger temperature exceeds its 200°F setpoint, preventing mechanical failure and ensuring safe combustion cycles. With a 30°F differential for automatic reset, it provides consistent high-limit protection and prevents nuisance tripping in high-static pressure environments. Field technicians often source the Lennox 97L01 to resolve furnace limit switch tripping issues or diagnostic codes related to primary limit circuit faults. Utilizing genuine Lennox heater parts ensures exact mounting footprints and terminal alignments, maintaining the original AHRI-rated performance of the HVAC system. This furnace temperature limit control is compatible with a wide range of G-series and residential furnace models, making it a staple for service vans performing emergency heating repairs.
Key Benefits:
- L200-30F Specifications: Factory calibrated to open at 200°F and reset at 170°F for accurate thermal cycling.
- Direct OEM Fit: Eliminates the need for bracket modifications or wire splicing during field installation.
- Critical Safety Protection: Monitors heat exchanger surface temperatures to prevent overheating and potential component fatigue.
- Broad Compatibility: Replaces multiple legacy Lennox part numbers in residential gas furnaces and modular heating units.
Common Questions:
How do I know if my Lennox 97L01 limit switch is bad?
If your furnace blower runs continuously while the burners fail to ignite, or if you measure an open circuit across the limit terminals during a call for heat while the heat exchanger is cool, the switch typically requires replacement.
Can I use a universal limit switch instead of the 97L01?
While universal switches exist, using the Lennox OEM 97L01 ensures the specific temperature rise and airflow requirements of the heat exchanger are met, maintaining system safety and efficiency.
What causes a limit switch to trip repeatedly?
Frequent tripping is often caused by restricted airflow, such as a clogged 1-inch pleated filter, an oversized blower motor setting, or blocked return air grilles, forcing the L200-30F to engage.
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.
