Lennox 93W72 Limit Switch
The Lennox 93W72 Limit Switch (also identified as L155-30F) is a critical safety component designed for precise thermal regulation in residential and commercial heating systems. This genuine OEM Lennox replacement part is engineered to monitor internal furnace temperatures and disrupt the electrical circuit if the heat exceeds the safety threshold of 155°F. Featuring an auto-reset function, the switch restores the circuit once temperatures drop by 30°F to 125°F, ensuring continuous protection without manual intervention. The Lennox 93W72 is technically identical to the 93W7201, providing a direct cross-reference for service technicians looking for exact-fit compatibility. Built with a 3-inch insert length and durable construction to withstand high-cycling industrial conditions, this furnace limit control prevents heat exchanger damage and ensures operational safety. For contractors, this Lennox 93W7201 equivalent provides a reliable solution for restoring system integrity and preventing overheating in various HVAC models.
Key Benefits- Precise Thermal Protection: Features a factory-calibrated 155°F cut-out to prevent system overheating and potential component failure.
- OEM Compatibility: Guaranteed fit for systems requiring Lennox 93W72 or 93W7201, maintaining original equipment performance standards.
- Automatic Reset: Simplifies system recovery by automatically resetting at 125°F (30°F differential), reducing unnecessary service calls.
- Durable Construction: Heavy-duty design with a 3-inch probe, optimized for the high-temperature environment of the heat exchanger.
What is the difference between the Lennox 93W72 and 93W7201?
These two part numbers are identical in technical specification, form, and function. The 93W72 and 93W7201 are interchangeable across all Lennox HVAC applications.
Can I use this switch in a furnace with a different temperature rating?
No. Safety limit switches must match the specific temperature rating (L155-30F) of the original component to ensure the furnace operates within the design-specified safety parameters.
How do I know if my limit switch has failed?
Common indicators include the furnace blower running constantly while the burners fail to ignite, or the system "short-cycling." A technician should verify continuity across the terminals during a call for heat.
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: $52.33
-65%$52.33
$18.32Lennox 93W72 Limit Switch
The Lennox 93W72 Limit Switch (also identified as L155-30F) is a critical safety component designed for precise thermal regulation in residential and commercial heating systems. This genuine OEM Lennox replacement part is engineered to monitor internal furnace temperatures and disrupt the electrical circuit if the heat exceeds the safety threshold of 155°F. Featuring an auto-reset function, the switch restores the circuit once temperatures drop by 30°F to 125°F, ensuring continuous protection without manual intervention. The Lennox 93W72 is technically identical to the 93W7201, providing a direct cross-reference for service technicians looking for exact-fit compatibility. Built with a 3-inch insert length and durable construction to withstand high-cycling industrial conditions, this furnace limit control prevents heat exchanger damage and ensures operational safety. For contractors, this Lennox 93W7201 equivalent provides a reliable solution for restoring system integrity and preventing overheating in various HVAC models.
Key Benefits- Precise Thermal Protection: Features a factory-calibrated 155°F cut-out to prevent system overheating and potential component failure.
- OEM Compatibility: Guaranteed fit for systems requiring Lennox 93W72 or 93W7201, maintaining original equipment performance standards.
- Automatic Reset: Simplifies system recovery by automatically resetting at 125°F (30°F differential), reducing unnecessary service calls.
- Durable Construction: Heavy-duty design with a 3-inch probe, optimized for the high-temperature environment of the heat exchanger.
What is the difference between the Lennox 93W72 and 93W7201?
These two part numbers are identical in technical specification, form, and function. The 93W72 and 93W7201 are interchangeable across all Lennox HVAC applications.
Can I use this switch in a furnace with a different temperature rating?
No. Safety limit switches must match the specific temperature rating (L155-30F) of the original component to ensure the furnace operates within the design-specified safety parameters.
How do I know if my limit switch has failed?
Common indicators include the furnace blower running constantly while the burners fail to ignite, or the system "short-cycling." A technician should verify continuity across the terminals during a call for heat.
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 93W72 Limit Switch (also identified as L155-30F) is a critical safety component designed for precise thermal regulation in residential and commercial heating systems. This genuine OEM Lennox replacement part is engineered to monitor internal furnace temperatures and disrupt the electrical circuit if the heat exceeds the safety threshold of 155°F. Featuring an auto-reset function, the switch restores the circuit once temperatures drop by 30°F to 125°F, ensuring continuous protection without manual intervention. The Lennox 93W72 is technically identical to the 93W7201, providing a direct cross-reference for service technicians looking for exact-fit compatibility. Built with a 3-inch insert length and durable construction to withstand high-cycling industrial conditions, this furnace limit control prevents heat exchanger damage and ensures operational safety. For contractors, this Lennox 93W7201 equivalent provides a reliable solution for restoring system integrity and preventing overheating in various HVAC models.
Key Benefits- Precise Thermal Protection: Features a factory-calibrated 155°F cut-out to prevent system overheating and potential component failure.
- OEM Compatibility: Guaranteed fit for systems requiring Lennox 93W72 or 93W7201, maintaining original equipment performance standards.
- Automatic Reset: Simplifies system recovery by automatically resetting at 125°F (30°F differential), reducing unnecessary service calls.
- Durable Construction: Heavy-duty design with a 3-inch probe, optimized for the high-temperature environment of the heat exchanger.
What is the difference between the Lennox 93W72 and 93W7201?
These two part numbers are identical in technical specification, form, and function. The 93W72 and 93W7201 are interchangeable across all Lennox HVAC applications.
Can I use this switch in a furnace with a different temperature rating?
No. Safety limit switches must match the specific temperature rating (L155-30F) of the original component to ensure the furnace operates within the design-specified safety parameters.
How do I know if my limit switch has failed?
Common indicators include the furnace blower running constantly while the burners fail to ignite, or the system "short-cycling." A technician should verify continuity across the terminals during a call for heat.
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.
