Lennox 70W16 Hot Surface Ignitor
The Lennox 70W16 Hot Surface Ignitor is a high-performance silicon carbide igniter designed for precise ignition in Lennox G40, G43, G50, G51, and G61 gas furnaces. Maintaining strict compatibility with Lennox OEM specifications, this component serves as a direct factory replacement for part numbers 70W1601, 70W16, and 100511-01. As a critical failure point in modern heating systems, the 70W16 ignitor utilizes a robust ceramic base and high-temperature lead wires to withstand the thermal stress of repeated ignition cycles. For HVAC contractors, this furnace ignitor replacement ensures reliable resistance levels for flame rectification circuits, preventing common furnace ignition failure codes. Whether performing routine maintenance or an emergency service call, installing this furnace replacement part restores the 120V ignition sequence to original equipment standards, ensuring the burner assembly fires consistently under varying manifold pressures and environmental conditions.
Key Benefits for Technicians:
- Direct OEM Match: Fully interchangeable with Lennox 70W1601, removing the need for bracket modifications during field installation.
- Thermal Durability: Engineered with silicon carbide to handle high-wattage startup without premature fatigue or cracking.
- Broad Compatibility: Fits a wide range of Lennox Merit and Elite series furnaces, making it a versatile stock item for service vans.
- Reliable Cold Starts: Optimized for rapid heat-up times to ensure the gas valve opens within the specific timing window required by the ignition control board.
Common Installation Questions:
How do I test a Lennox 70W16 ignitor for failure?
Using a multimeter set to ohms, check the resistance across the plug. A failed 70W16 ignitor will typically show an open circuit (infinite resistance) or a reading significantly outside the manufacturer’s specified range, indicating a hairline fracture in the element.
Can I touch the silicon carbide element during installation?
No. Like all hot surface ignitors, skin oils can create hot spots on the element surface, leading to premature failure. Always handle the component by the ceramic base and ensure the Lennox 70W1601 is seated properly in the burner bracket.
Why is my furnace clicking but not lighting?
If the furnace ignitor does not glow during the startup sequence, it is likely cracked or the control board is not sending 120V. If the ignitor glows but the burner doesn't stay lit, you may have a flame sensor issue or a gas delivery problem rather than a faulty 70W16.
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: $82.82
-65%$82.82
$28.99Lennox 70W16 Hot Surface Ignitor
The Lennox 70W16 Hot Surface Ignitor is a high-performance silicon carbide igniter designed for precise ignition in Lennox G40, G43, G50, G51, and G61 gas furnaces. Maintaining strict compatibility with Lennox OEM specifications, this component serves as a direct factory replacement for part numbers 70W1601, 70W16, and 100511-01. As a critical failure point in modern heating systems, the 70W16 ignitor utilizes a robust ceramic base and high-temperature lead wires to withstand the thermal stress of repeated ignition cycles. For HVAC contractors, this furnace ignitor replacement ensures reliable resistance levels for flame rectification circuits, preventing common furnace ignition failure codes. Whether performing routine maintenance or an emergency service call, installing this furnace replacement part restores the 120V ignition sequence to original equipment standards, ensuring the burner assembly fires consistently under varying manifold pressures and environmental conditions.
Key Benefits for Technicians:
- Direct OEM Match: Fully interchangeable with Lennox 70W1601, removing the need for bracket modifications during field installation.
- Thermal Durability: Engineered with silicon carbide to handle high-wattage startup without premature fatigue or cracking.
- Broad Compatibility: Fits a wide range of Lennox Merit and Elite series furnaces, making it a versatile stock item for service vans.
- Reliable Cold Starts: Optimized for rapid heat-up times to ensure the gas valve opens within the specific timing window required by the ignition control board.
Common Installation Questions:
How do I test a Lennox 70W16 ignitor for failure?
Using a multimeter set to ohms, check the resistance across the plug. A failed 70W16 ignitor will typically show an open circuit (infinite resistance) or a reading significantly outside the manufacturer’s specified range, indicating a hairline fracture in the element.
Can I touch the silicon carbide element during installation?
No. Like all hot surface ignitors, skin oils can create hot spots on the element surface, leading to premature failure. Always handle the component by the ceramic base and ensure the Lennox 70W1601 is seated properly in the burner bracket.
Why is my furnace clicking but not lighting?
If the furnace ignitor does not glow during the startup sequence, it is likely cracked or the control board is not sending 120V. If the ignitor glows but the burner doesn't stay lit, you may have a flame sensor issue or a gas delivery problem rather than a faulty 70W16.
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 70W16 Hot Surface Ignitor is a high-performance silicon carbide igniter designed for precise ignition in Lennox G40, G43, G50, G51, and G61 gas furnaces. Maintaining strict compatibility with Lennox OEM specifications, this component serves as a direct factory replacement for part numbers 70W1601, 70W16, and 100511-01. As a critical failure point in modern heating systems, the 70W16 ignitor utilizes a robust ceramic base and high-temperature lead wires to withstand the thermal stress of repeated ignition cycles. For HVAC contractors, this furnace ignitor replacement ensures reliable resistance levels for flame rectification circuits, preventing common furnace ignition failure codes. Whether performing routine maintenance or an emergency service call, installing this furnace replacement part restores the 120V ignition sequence to original equipment standards, ensuring the burner assembly fires consistently under varying manifold pressures and environmental conditions.
Key Benefits for Technicians:
- Direct OEM Match: Fully interchangeable with Lennox 70W1601, removing the need for bracket modifications during field installation.
- Thermal Durability: Engineered with silicon carbide to handle high-wattage startup without premature fatigue or cracking.
- Broad Compatibility: Fits a wide range of Lennox Merit and Elite series furnaces, making it a versatile stock item for service vans.
- Reliable Cold Starts: Optimized for rapid heat-up times to ensure the gas valve opens within the specific timing window required by the ignition control board.
Common Installation Questions:
How do I test a Lennox 70W16 ignitor for failure?
Using a multimeter set to ohms, check the resistance across the plug. A failed 70W16 ignitor will typically show an open circuit (infinite resistance) or a reading significantly outside the manufacturer’s specified range, indicating a hairline fracture in the element.
Can I touch the silicon carbide element during installation?
No. Like all hot surface ignitors, skin oils can create hot spots on the element surface, leading to premature failure. Always handle the component by the ceramic base and ensure the Lennox 70W1601 is seated properly in the burner bracket.
Why is my furnace clicking but not lighting?
If the furnace ignitor does not glow during the startup sequence, it is likely cracked or the control board is not sending 120V. If the ignitor glows but the burner doesn't stay lit, you may have a flame sensor issue or a gas delivery problem rather than a faulty 70W16.
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.
