Description
The Lennox 79L59 Flame Sensor Wire is an OEM replacement component designed to maintain reliable communication between the flame sensor and the furnace control board. A properly functioning flame sensor wire is critical to safe furnace operation — it carries the microamp signal that confirms burner ignition and allows the system to remain in heating mode. A damaged, corroded, or failed wire can cause nuisance lockouts, intermittent heating, or a complete no-heat condition.
Product Overview
This direct-fit replacement wire is engineered specifically for compatible Lennox furnace models, ensuring a precise fit and dependable electrical connection. Using a genuine Lennox part helps restore original system performance and avoids compatibility issues associated with aftermarket alternatives.
Key Features
- OEM Lennox replacement flame sensor wire
- Designed for direct fit on compatible Lennox furnace models
- Maintains accurate microamp signal transmission from flame sensor to control board
- Helps prevent nuisance lockouts caused by faulty or degraded wiring
- Supports safe and reliable burner operation
- Durable construction for long-lasting performance in high-temperature furnace environments
Application
- Replacement flame sensor wire for select Lennox gas furnace models
- Ideal for HVAC technicians performing furnace diagnostics and repair
- Recommended when flame sensor wire shows signs of heat damage, cracking, or poor connectivity
Why Replace Your Flame Sensor Wire?
Over time, the high-heat environment inside a furnace can degrade wire insulation and connectors, leading to intermittent or failed flame sensing. Replacing the wire as part of a thorough flame sensor service restores full system reliability and helps avoid repeat service calls.
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