Lennox 64L99 Flame Sensor Lead
The Lennox 64L99 Flame Sensor Lead is an essential OEM replacement component designed to maintain the integrity of the flame rectification circuit in residential furnaces. This high-temperature flame sensor wire facilitates the critical millivolt signal transfer between the sensing rod and the integrated furnace control board. Engineered for durability, the 64L99 features a specific 59.5-inch length and heat-resistant shielded insulation to withstand the high-ambient conditions of the burner vestibule without signal degradation or terminal failure.
As a direct replacement for the obsolete LXT-13-1348, this lead ensures seamless furnace flame sensor troubleshooting and repair for contractors. Poor electrical continuity or brittle insulation on an aging lead often results in nuisance lockouts or "no flame detected" error codes. By installing this genuine Lennox furnace part, technicians can restore reliable ignition sequences and prevent the vacuum of safety-related gas valve shutdowns. This lead is compatible with a wide range of Lennox, Armstrong, and Ducane heating units, making it a versatile addition to any service van.
Key Benefits:- Direct OEM Replacement: Engineering-matched for the LXT-13-1348 to ensure exact terminal fitment and electrical resistance.
- High-Temperature Durability: Features 59.5-inch internal wiring with a specialized shield to prevent melting or shorting near the heat exchanger.
- Signal Integrity: Minimizes electrical noise in the flame rectification circuit to prevent intermittent burner dropouts.
- Broad Compatibility: Supports various Lennox-family brands including Allied, Armstrong, and Ducane furnace systems.
Why is my furnace burner shutting off after only a few seconds?
This is often caused by a break in the flame rectification circuit. If the flame sensor lead is damaged or the terminal is loose, the control board cannot verify the flame, triggering a safety shutdown.
How do I test the 64L99 lead for continuity?
Using a multimeter set to ohms, check for a low-resistance path from end to end. If you see an open circuit or high resistance, the lead must be replaced to restore proper Lennox furnace flame sensor operation.
Can I use a generic wire instead of the 64L99?
It is not recommended. This lead uses specific heat-rated insulation and shielding to protect the sensitive microamp signal from electronic interference and thermal damage inside the cabinet.
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: $30.79
-65%$30.79
$10.78Lennox 64L99 Flame Sensor Lead
The Lennox 64L99 Flame Sensor Lead is an essential OEM replacement component designed to maintain the integrity of the flame rectification circuit in residential furnaces. This high-temperature flame sensor wire facilitates the critical millivolt signal transfer between the sensing rod and the integrated furnace control board. Engineered for durability, the 64L99 features a specific 59.5-inch length and heat-resistant shielded insulation to withstand the high-ambient conditions of the burner vestibule without signal degradation or terminal failure.
As a direct replacement for the obsolete LXT-13-1348, this lead ensures seamless furnace flame sensor troubleshooting and repair for contractors. Poor electrical continuity or brittle insulation on an aging lead often results in nuisance lockouts or "no flame detected" error codes. By installing this genuine Lennox furnace part, technicians can restore reliable ignition sequences and prevent the vacuum of safety-related gas valve shutdowns. This lead is compatible with a wide range of Lennox, Armstrong, and Ducane heating units, making it a versatile addition to any service van.
Key Benefits:- Direct OEM Replacement: Engineering-matched for the LXT-13-1348 to ensure exact terminal fitment and electrical resistance.
- High-Temperature Durability: Features 59.5-inch internal wiring with a specialized shield to prevent melting or shorting near the heat exchanger.
- Signal Integrity: Minimizes electrical noise in the flame rectification circuit to prevent intermittent burner dropouts.
- Broad Compatibility: Supports various Lennox-family brands including Allied, Armstrong, and Ducane furnace systems.
Why is my furnace burner shutting off after only a few seconds?
This is often caused by a break in the flame rectification circuit. If the flame sensor lead is damaged or the terminal is loose, the control board cannot verify the flame, triggering a safety shutdown.
How do I test the 64L99 lead for continuity?
Using a multimeter set to ohms, check for a low-resistance path from end to end. If you see an open circuit or high resistance, the lead must be replaced to restore proper Lennox furnace flame sensor operation.
Can I use a generic wire instead of the 64L99?
It is not recommended. This lead uses specific heat-rated insulation and shielding to protect the sensitive microamp signal from electronic interference and thermal damage inside the cabinet.
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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Product Information
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Description
The Lennox 64L99 Flame Sensor Lead is an essential OEM replacement component designed to maintain the integrity of the flame rectification circuit in residential furnaces. This high-temperature flame sensor wire facilitates the critical millivolt signal transfer between the sensing rod and the integrated furnace control board. Engineered for durability, the 64L99 features a specific 59.5-inch length and heat-resistant shielded insulation to withstand the high-ambient conditions of the burner vestibule without signal degradation or terminal failure.
As a direct replacement for the obsolete LXT-13-1348, this lead ensures seamless furnace flame sensor troubleshooting and repair for contractors. Poor electrical continuity or brittle insulation on an aging lead often results in nuisance lockouts or "no flame detected" error codes. By installing this genuine Lennox furnace part, technicians can restore reliable ignition sequences and prevent the vacuum of safety-related gas valve shutdowns. This lead is compatible with a wide range of Lennox, Armstrong, and Ducane heating units, making it a versatile addition to any service van.
Key Benefits:- Direct OEM Replacement: Engineering-matched for the LXT-13-1348 to ensure exact terminal fitment and electrical resistance.
- High-Temperature Durability: Features 59.5-inch internal wiring with a specialized shield to prevent melting or shorting near the heat exchanger.
- Signal Integrity: Minimizes electrical noise in the flame rectification circuit to prevent intermittent burner dropouts.
- Broad Compatibility: Supports various Lennox-family brands including Allied, Armstrong, and Ducane furnace systems.
Why is my furnace burner shutting off after only a few seconds?
This is often caused by a break in the flame rectification circuit. If the flame sensor lead is damaged or the terminal is loose, the control board cannot verify the flame, triggering a safety shutdown.
How do I test the 64L99 lead for continuity?
Using a multimeter set to ohms, check for a low-resistance path from end to end. If you see an open circuit or high resistance, the lead must be replaced to restore proper Lennox furnace flame sensor operation.
Can I use a generic wire instead of the 64L99?
It is not recommended. This lead uses specific heat-rated insulation and shielding to protect the sensitive microamp signal from electronic interference and thermal damage inside the cabinet.
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.
