
Lennox 83L88 Rollout Switch
When high-limit safety is the priority, the Lennox 83L88 Rollout Switch serves as a critical 200°F defensive component for the burner assembly. This manual reset rollout switch is engineered with a Single Pole Single Throw (SPST) configuration, designed to break the electrical circuit and initiate a safety shutdown if it detects flame rollout or excessive heat near the combustion chamber. As an authentic OEM Lennox replacement part, this 200-degree thermal limit ensures your furnace operates within its specified thermal parameters, preventing damage to the cabinet and surrounding components.
Experienced contractors know that a tripped Lennox furnace flame rollout switch often indicates underlying issues such as a cracked heat exchanger, blocked venting, or poor combustion airflow. The Lennox 83L88 is common in G40UH and G50UH series units, providing a direct-fit solution for maintaining HVAC safety limit standards. Its robust construction is built to withstand the rigors of the burner box environment while ensuring a precision trip at its 200°F setpoint.
Key Benefits:- Precision Thermal Calibration: Calibrated to trip at exactly 200 degrees Fahrenheit to prevent hazardous overheating.
- Manual Reset Mechanism: Requires a technician to manually reset the red button after a trip, ensuring a thorough system inspection is performed.
- OEM Compatibility: Specifically designed for Lennox heating systems, ensuring proper mounting and terminal alignment.
- Critical Fire Prevention: Acts as a primary safety layer by interrupting the gas valve circuit when flame spillover occurs.
- Why does my rollout switch keep tripping? Frequent trips usually signal a serious issue like a cracked heat exchanger or a soot-clogged secondary heat exchanger that is pushing flames toward the switch.
- Can I bypass this switch for testing? Never bypass a rollout switch. It is a safety device; if it triggers, there is a combustion or venting failure that must be addressed by a professional.
- How do I test the 83L88 for continuity? Using a multimeter set to the lowest Ohms scale, you should see near-zero resistance. If it shows infinite resistance (OL) and the button is pressed in, the internal bimetal disc has failed.
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.
Lennox 83L88 Rollout Switch
When high-limit safety is the priority, the Lennox 83L88 Rollout Switch serves as a critical 200°F defensive component for the burner assembly. This manual reset rollout switch is engineered with a Single Pole Single Throw (SPST) configuration, designed to break the electrical circuit and initiate a safety shutdown if it detects flame rollout or excessive heat near the combustion chamber. As an authentic OEM Lennox replacement part, this 200-degree thermal limit ensures your furnace operates within its specified thermal parameters, preventing damage to the cabinet and surrounding components.
Experienced contractors know that a tripped Lennox furnace flame rollout switch often indicates underlying issues such as a cracked heat exchanger, blocked venting, or poor combustion airflow. The Lennox 83L88 is common in G40UH and G50UH series units, providing a direct-fit solution for maintaining HVAC safety limit standards. Its robust construction is built to withstand the rigors of the burner box environment while ensuring a precision trip at its 200°F setpoint.
Key Benefits:- Precision Thermal Calibration: Calibrated to trip at exactly 200 degrees Fahrenheit to prevent hazardous overheating.
- Manual Reset Mechanism: Requires a technician to manually reset the red button after a trip, ensuring a thorough system inspection is performed.
- OEM Compatibility: Specifically designed for Lennox heating systems, ensuring proper mounting and terminal alignment.
- Critical Fire Prevention: Acts as a primary safety layer by interrupting the gas valve circuit when flame spillover occurs.
- Why does my rollout switch keep tripping? Frequent trips usually signal a serious issue like a cracked heat exchanger or a soot-clogged secondary heat exchanger that is pushing flames toward the switch.
- Can I bypass this switch for testing? Never bypass a rollout switch. It is a safety device; if it triggers, there is a combustion or venting failure that must be addressed by a professional.
- How do I test the 83L88 for continuity? Using a multimeter set to the lowest Ohms scale, you should see near-zero resistance. If it shows infinite resistance (OL) and the button is pressed in, the internal bimetal disc has failed.
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
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Description
When high-limit safety is the priority, the Lennox 83L88 Rollout Switch serves as a critical 200°F defensive component for the burner assembly. This manual reset rollout switch is engineered with a Single Pole Single Throw (SPST) configuration, designed to break the electrical circuit and initiate a safety shutdown if it detects flame rollout or excessive heat near the combustion chamber. As an authentic OEM Lennox replacement part, this 200-degree thermal limit ensures your furnace operates within its specified thermal parameters, preventing damage to the cabinet and surrounding components.
Experienced contractors know that a tripped Lennox furnace flame rollout switch often indicates underlying issues such as a cracked heat exchanger, blocked venting, or poor combustion airflow. The Lennox 83L88 is common in G40UH and G50UH series units, providing a direct-fit solution for maintaining HVAC safety limit standards. Its robust construction is built to withstand the rigors of the burner box environment while ensuring a precision trip at its 200°F setpoint.
Key Benefits:- Precision Thermal Calibration: Calibrated to trip at exactly 200 degrees Fahrenheit to prevent hazardous overheating.
- Manual Reset Mechanism: Requires a technician to manually reset the red button after a trip, ensuring a thorough system inspection is performed.
- OEM Compatibility: Specifically designed for Lennox heating systems, ensuring proper mounting and terminal alignment.
- Critical Fire Prevention: Acts as a primary safety layer by interrupting the gas valve circuit when flame spillover occurs.
- Why does my rollout switch keep tripping? Frequent trips usually signal a serious issue like a cracked heat exchanger or a soot-clogged secondary heat exchanger that is pushing flames toward the switch.
- Can I bypass this switch for testing? Never bypass a rollout switch. It is a safety device; if it triggers, there is a combustion or venting failure that must be addressed by a professional.
- How do I test the 83L88 for continuity? Using a multimeter set to the lowest Ohms scale, you should see near-zero resistance. If it shows infinite resistance (OL) and the button is pressed in, the internal bimetal disc has failed.
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.












