Lennox 13H04 Rollout Switch
The Lennox 13H04 Rollout Switch (also identified as the Lennox 100811-04) is a critical safety component calibrated for 340F actuation in gas-fired furnace applications. This manual-reset limit control is engineered to detect flame rollout conditions, immediately interrupting the SPST (Single Pole Single Throw) circuit to shut down the heating system before thermal damage occurs to the burner vestibule or external components. Featuring an open-face design for rapid thermal response and a normally closed configuration that opens at 340 degrees Fahrenheit, this genuine OEM part ensures exact electrical specifications and mounting alignment for Lennox residential furnaces and commercial heating units.
For technicians diagnosing a tripped L340-40F rollout limit, it is vital to inspect for compromised heat exchangers, flue obstructions, or improper gas pressure before resetting the device. The 13H04 switch provides a consistent 1/2" disc diameter and standard HVAC rollout sensor spade terminals for a secure, plug-and-play fit. Utilizing a manual reset rollout switch like the 13H04 is the industry standard for ensuring that a safety-critical trip requires a professional inspection of the combustion chamber’s integrity, maintaining HVAC system safety and compliance with manufacturer specifications.
Key Benefits:- Precise 340F Calibration: Ensures the system shuts down accurately at the specified thermal threshold to prevent fire hazards.
- Manual Reset Security: Prevents the furnace from auto-restarting after a flame rollout trip, forcing a necessary safety inspection.
- OEM Compatibility: A direct replacement for 100811-04 and LEN13H04, ensuring correct cut-out temperatures and fitment.
- High-Response Open Face: Designed for fast thermal sensation to protect the burner box and surrounding wiring.
- Durable Construction: Built to withstand the harsh environment of a gas furnace burner compartment.
- Can I bypass the 13H04 rollout switch to test my furnace? No. Bypassing a safety limit switch is extremely dangerous and can lead to property damage or personal injury. Always identify the cause of the rollout.
- Why does my Lennox 340F switch keep tripping? Common causes include a cracked heat exchanger, blocked venting (soot or debris), or a failing inducer motor that isn't pulling enough draft.
- Is the 13H04 a normally open or normally closed switch? This is a normally closed (NC) switch that opens (breaks the circuit) when it reaches its 340-degree limit.
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.
Lennox 13H04 Rollout Switch
The Lennox 13H04 Rollout Switch (also identified as the Lennox 100811-04) is a critical safety component calibrated for 340F actuation in gas-fired furnace applications. This manual-reset limit control is engineered to detect flame rollout conditions, immediately interrupting the SPST (Single Pole Single Throw) circuit to shut down the heating system before thermal damage occurs to the burner vestibule or external components. Featuring an open-face design for rapid thermal response and a normally closed configuration that opens at 340 degrees Fahrenheit, this genuine OEM part ensures exact electrical specifications and mounting alignment for Lennox residential furnaces and commercial heating units.
For technicians diagnosing a tripped L340-40F rollout limit, it is vital to inspect for compromised heat exchangers, flue obstructions, or improper gas pressure before resetting the device. The 13H04 switch provides a consistent 1/2" disc diameter and standard HVAC rollout sensor spade terminals for a secure, plug-and-play fit. Utilizing a manual reset rollout switch like the 13H04 is the industry standard for ensuring that a safety-critical trip requires a professional inspection of the combustion chamber’s integrity, maintaining HVAC system safety and compliance with manufacturer specifications.
Key Benefits:- Precise 340F Calibration: Ensures the system shuts down accurately at the specified thermal threshold to prevent fire hazards.
- Manual Reset Security: Prevents the furnace from auto-restarting after a flame rollout trip, forcing a necessary safety inspection.
- OEM Compatibility: A direct replacement for 100811-04 and LEN13H04, ensuring correct cut-out temperatures and fitment.
- High-Response Open Face: Designed for fast thermal sensation to protect the burner box and surrounding wiring.
- Durable Construction: Built to withstand the harsh environment of a gas furnace burner compartment.
- Can I bypass the 13H04 rollout switch to test my furnace? No. Bypassing a safety limit switch is extremely dangerous and can lead to property damage or personal injury. Always identify the cause of the rollout.
- Why does my Lennox 340F switch keep tripping? Common causes include a cracked heat exchanger, blocked venting (soot or debris), or a failing inducer motor that isn't pulling enough draft.
- Is the 13H04 a normally open or normally closed switch? This is a normally closed (NC) switch that opens (breaks the circuit) when it reaches its 340-degree limit.
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 Lennox 13H04 Rollout Switch (also identified as the Lennox 100811-04) is a critical safety component calibrated for 340F actuation in gas-fired furnace applications. This manual-reset limit control is engineered to detect flame rollout conditions, immediately interrupting the SPST (Single Pole Single Throw) circuit to shut down the heating system before thermal damage occurs to the burner vestibule or external components. Featuring an open-face design for rapid thermal response and a normally closed configuration that opens at 340 degrees Fahrenheit, this genuine OEM part ensures exact electrical specifications and mounting alignment for Lennox residential furnaces and commercial heating units.
For technicians diagnosing a tripped L340-40F rollout limit, it is vital to inspect for compromised heat exchangers, flue obstructions, or improper gas pressure before resetting the device. The 13H04 switch provides a consistent 1/2" disc diameter and standard HVAC rollout sensor spade terminals for a secure, plug-and-play fit. Utilizing a manual reset rollout switch like the 13H04 is the industry standard for ensuring that a safety-critical trip requires a professional inspection of the combustion chamber’s integrity, maintaining HVAC system safety and compliance with manufacturer specifications.
Key Benefits:- Precise 340F Calibration: Ensures the system shuts down accurately at the specified thermal threshold to prevent fire hazards.
- Manual Reset Security: Prevents the furnace from auto-restarting after a flame rollout trip, forcing a necessary safety inspection.
- OEM Compatibility: A direct replacement for 100811-04 and LEN13H04, ensuring correct cut-out temperatures and fitment.
- High-Response Open Face: Designed for fast thermal sensation to protect the burner box and surrounding wiring.
- Durable Construction: Built to withstand the harsh environment of a gas furnace burner compartment.
- Can I bypass the 13H04 rollout switch to test my furnace? No. Bypassing a safety limit switch is extremely dangerous and can lead to property damage or personal injury. Always identify the cause of the rollout.
- Why does my Lennox 340F switch keep tripping? Common causes include a cracked heat exchanger, blocked venting (soot or debris), or a failing inducer motor that isn't pulling enough draft.
- Is the 13H04 a normally open or normally closed switch? This is a normally closed (NC) switch that opens (breaks the circuit) when it reaches its 340-degree limit.
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.
