
Lennox 62L18 Gas Valve
The Lennox 62L18 Gas Valve is a direct OEM replacement for residential and commercial gas fireplace systems, specifically engineered for precision fuel regulation. Identified by the manufacturer as model SV9403M2303, this Honeywell/Resideo smart gas valve is designed for Natural Gas (NG) applications. It operates on a standard 24V AC (50/60Hz) electrical rating, drawing 0.2 Amps for the run cycle and up to 1.25 Amps for the igniter circuit. This component features 1/2 inch NPT inlet and outlet ports, facilitating a secure fit within the tight manifold configurations of Lennox Elite, Merit, Astria, and Superior series fireplaces.
For technicians performing field diagnostics, this valve is factory-set to a 3.5 in. w.c. regulator pressure, with an adjustable range of 3-5 in. w.c.. The 62L18 integrates seamlessly with electronic ignition systems, ensuring consistent flame height and reliable heat output. Its robust construction is built to withstand the thermal stresses of high-demand heating cycles. When replacing older units, verify that the existing manifold piping matches the 1/2" NPT threading to maintain pressure integrity and prevent leaks.
Key Benefits- Precise Gas Regulation: Features a factory-calibrated 3.5" WC setting for optimal combustion efficiency in Lennox fireplaces.
- OEM Compatibility: Exact replacement for SV9403M2303, 62L1801, and 62L1801_1, ensuring no modifications are needed during installation.
- High Reliability: Engineered by Honeywell/Resideo to meet strict safety standards for Natural Gas ignition controlled by a 24V signal.
- Versatile Application: Supports a wide range of models including the Lennox Merit and Elite Series gas fireplaces.
- Can the 62L18 be converted to Liquid Propane (LP)? While most Honeywell SV9403 series valves can be converted, a specific LP conversion kit is required. We recommend verifying the manufacturer's orifice and spring requirements before attempting a field conversion.
- My valve label says Resideo instead of Honeywell; is it the same part? Yes. Resideo is the corporate entity for Honeywell Home products. The SV9403M2303 is functionally identical across both brands.
- How do I troubleshoot if the valve is not opening? Ensure 24V AC is reaching the valve terminals after the igniter glows. If voltage is present but no gas flows, the internal solenoid or smart valve logic may have 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.
Original: $527.39
-65%$527.39
$184.59Lennox 62L18 Gas Valve
The Lennox 62L18 Gas Valve is a direct OEM replacement for residential and commercial gas fireplace systems, specifically engineered for precision fuel regulation. Identified by the manufacturer as model SV9403M2303, this Honeywell/Resideo smart gas valve is designed for Natural Gas (NG) applications. It operates on a standard 24V AC (50/60Hz) electrical rating, drawing 0.2 Amps for the run cycle and up to 1.25 Amps for the igniter circuit. This component features 1/2 inch NPT inlet and outlet ports, facilitating a secure fit within the tight manifold configurations of Lennox Elite, Merit, Astria, and Superior series fireplaces.
For technicians performing field diagnostics, this valve is factory-set to a 3.5 in. w.c. regulator pressure, with an adjustable range of 3-5 in. w.c.. The 62L18 integrates seamlessly with electronic ignition systems, ensuring consistent flame height and reliable heat output. Its robust construction is built to withstand the thermal stresses of high-demand heating cycles. When replacing older units, verify that the existing manifold piping matches the 1/2" NPT threading to maintain pressure integrity and prevent leaks.
Key Benefits- Precise Gas Regulation: Features a factory-calibrated 3.5" WC setting for optimal combustion efficiency in Lennox fireplaces.
- OEM Compatibility: Exact replacement for SV9403M2303, 62L1801, and 62L1801_1, ensuring no modifications are needed during installation.
- High Reliability: Engineered by Honeywell/Resideo to meet strict safety standards for Natural Gas ignition controlled by a 24V signal.
- Versatile Application: Supports a wide range of models including the Lennox Merit and Elite Series gas fireplaces.
- Can the 62L18 be converted to Liquid Propane (LP)? While most Honeywell SV9403 series valves can be converted, a specific LP conversion kit is required. We recommend verifying the manufacturer's orifice and spring requirements before attempting a field conversion.
- My valve label says Resideo instead of Honeywell; is it the same part? Yes. Resideo is the corporate entity for Honeywell Home products. The SV9403M2303 is functionally identical across both brands.
- How do I troubleshoot if the valve is not opening? Ensure 24V AC is reaching the valve terminals after the igniter glows. If voltage is present but no gas flows, the internal solenoid or smart valve logic may have 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.
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Description
The Lennox 62L18 Gas Valve is a direct OEM replacement for residential and commercial gas fireplace systems, specifically engineered for precision fuel regulation. Identified by the manufacturer as model SV9403M2303, this Honeywell/Resideo smart gas valve is designed for Natural Gas (NG) applications. It operates on a standard 24V AC (50/60Hz) electrical rating, drawing 0.2 Amps for the run cycle and up to 1.25 Amps for the igniter circuit. This component features 1/2 inch NPT inlet and outlet ports, facilitating a secure fit within the tight manifold configurations of Lennox Elite, Merit, Astria, and Superior series fireplaces.
For technicians performing field diagnostics, this valve is factory-set to a 3.5 in. w.c. regulator pressure, with an adjustable range of 3-5 in. w.c.. The 62L18 integrates seamlessly with electronic ignition systems, ensuring consistent flame height and reliable heat output. Its robust construction is built to withstand the thermal stresses of high-demand heating cycles. When replacing older units, verify that the existing manifold piping matches the 1/2" NPT threading to maintain pressure integrity and prevent leaks.
Key Benefits- Precise Gas Regulation: Features a factory-calibrated 3.5" WC setting for optimal combustion efficiency in Lennox fireplaces.
- OEM Compatibility: Exact replacement for SV9403M2303, 62L1801, and 62L1801_1, ensuring no modifications are needed during installation.
- High Reliability: Engineered by Honeywell/Resideo to meet strict safety standards for Natural Gas ignition controlled by a 24V signal.
- Versatile Application: Supports a wide range of models including the Lennox Merit and Elite Series gas fireplaces.
- Can the 62L18 be converted to Liquid Propane (LP)? While most Honeywell SV9403 series valves can be converted, a specific LP conversion kit is required. We recommend verifying the manufacturer's orifice and spring requirements before attempting a field conversion.
- My valve label says Resideo instead of Honeywell; is it the same part? Yes. Resideo is the corporate entity for Honeywell Home products. The SV9403M2303 is functionally identical across both brands.
- How do I troubleshoot if the valve is not opening? Ensure 24V AC is reaching the valve terminals after the igniter glows. If voltage is present but no gas flows, the internal solenoid or smart valve logic may have 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.












