Lochinvar & A.O. Smith 100171924 Valve
The Lochinvar & A.O. Smith 100171924 Gas Valve Kit is a critical OEM replacement component designed to restore precise fuel regulation in high-efficiency condensing boilers and commercial water heaters. This negative pressure gas valve acts as the primary safety and modulation interface, responding to the blower’s venturi suction to ensure the exact stoichiometric ratio for clean combustion. Specifically engineered as the updated replacement for the Lochinvar VAL30007, this kit resolves common "GV Relay Fail" codes and ignition lockouts often caused by solenoid coil degradation or internal diaphragm fatigue. As a veteran-grade HVAC replacement part, it is built to maintain stable manifold pressure even under varying inlet conditions. Professionals should verify the gas valve wiring harness integrity and check for proper 24V signals at the black molex connector during the ignition trial to confirm a mechanical valve failure before installation.
Key Benefits:
- Direct OEM Compatibility: Serves as the factory-authorized update for Lochinvar Knight and A.O. Smith commercial units, ensuring seamless fitment and electrical alignment.
- Precision Modulation: Optimized for systems utilizing negative regulation, allowing for stable firing rates across the entire modulation range from low to high fire.
- Enhanced Safety: Replaces 100171924 gas valves that have suffered from internal sticking, preventing hazardous unburned gas accumulation or nuisance "Flame Failure" alarms.
- Complete Assembly: The kit provides the necessary hardware for a standard field swap, reducing downtime on critical residential or commercial heating loops.
Common Questions:
Can I use this 100171924 kit to convert from Natural Gas to Propane?
This valve is typically factory-set; however, conversion requires the specific orifice and jumper settings defined in your appliance's service manual. Always perform a combustion analysis after installation to verify CO2 and O2 levels.
What does a "GV Relay Fail" error mean on a Lochinvar Smart System?
While this error can sometimes indicate a control board issue, it is frequently triggered by a high amp draw from a failing gas valve solenoid. Testing the resistance and ensuring the 220-ohm circuit is intact are standard diagnostic steps before replacement.
Why is my boiler sparking but not igniting with a new valve?
Verify that the inlet gas pressure is between 4" and 14" w.c. and that the blower is creating sufficient negative pressure to pull the valve diaphragm open. Ensure the manual shut-off is fully engaged and the black connector is seated with dielectric grease if necessary.
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: $710.58
-65%$710.58
$248.70Lochinvar & A.O. Smith 100171924 Valve
The Lochinvar & A.O. Smith 100171924 Gas Valve Kit is a critical OEM replacement component designed to restore precise fuel regulation in high-efficiency condensing boilers and commercial water heaters. This negative pressure gas valve acts as the primary safety and modulation interface, responding to the blower’s venturi suction to ensure the exact stoichiometric ratio for clean combustion. Specifically engineered as the updated replacement for the Lochinvar VAL30007, this kit resolves common "GV Relay Fail" codes and ignition lockouts often caused by solenoid coil degradation or internal diaphragm fatigue. As a veteran-grade HVAC replacement part, it is built to maintain stable manifold pressure even under varying inlet conditions. Professionals should verify the gas valve wiring harness integrity and check for proper 24V signals at the black molex connector during the ignition trial to confirm a mechanical valve failure before installation.
Key Benefits:
- Direct OEM Compatibility: Serves as the factory-authorized update for Lochinvar Knight and A.O. Smith commercial units, ensuring seamless fitment and electrical alignment.
- Precision Modulation: Optimized for systems utilizing negative regulation, allowing for stable firing rates across the entire modulation range from low to high fire.
- Enhanced Safety: Replaces 100171924 gas valves that have suffered from internal sticking, preventing hazardous unburned gas accumulation or nuisance "Flame Failure" alarms.
- Complete Assembly: The kit provides the necessary hardware for a standard field swap, reducing downtime on critical residential or commercial heating loops.
Common Questions:
Can I use this 100171924 kit to convert from Natural Gas to Propane?
This valve is typically factory-set; however, conversion requires the specific orifice and jumper settings defined in your appliance's service manual. Always perform a combustion analysis after installation to verify CO2 and O2 levels.
What does a "GV Relay Fail" error mean on a Lochinvar Smart System?
While this error can sometimes indicate a control board issue, it is frequently triggered by a high amp draw from a failing gas valve solenoid. Testing the resistance and ensuring the 220-ohm circuit is intact are standard diagnostic steps before replacement.
Why is my boiler sparking but not igniting with a new valve?
Verify that the inlet gas pressure is between 4" and 14" w.c. and that the blower is creating sufficient negative pressure to pull the valve diaphragm open. Ensure the manual shut-off is fully engaged and the black connector is seated with dielectric grease if necessary.
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
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Description
The Lochinvar & A.O. Smith 100171924 Gas Valve Kit is a critical OEM replacement component designed to restore precise fuel regulation in high-efficiency condensing boilers and commercial water heaters. This negative pressure gas valve acts as the primary safety and modulation interface, responding to the blower’s venturi suction to ensure the exact stoichiometric ratio for clean combustion. Specifically engineered as the updated replacement for the Lochinvar VAL30007, this kit resolves common "GV Relay Fail" codes and ignition lockouts often caused by solenoid coil degradation or internal diaphragm fatigue. As a veteran-grade HVAC replacement part, it is built to maintain stable manifold pressure even under varying inlet conditions. Professionals should verify the gas valve wiring harness integrity and check for proper 24V signals at the black molex connector during the ignition trial to confirm a mechanical valve failure before installation.
Key Benefits:
- Direct OEM Compatibility: Serves as the factory-authorized update for Lochinvar Knight and A.O. Smith commercial units, ensuring seamless fitment and electrical alignment.
- Precision Modulation: Optimized for systems utilizing negative regulation, allowing for stable firing rates across the entire modulation range from low to high fire.
- Enhanced Safety: Replaces 100171924 gas valves that have suffered from internal sticking, preventing hazardous unburned gas accumulation or nuisance "Flame Failure" alarms.
- Complete Assembly: The kit provides the necessary hardware for a standard field swap, reducing downtime on critical residential or commercial heating loops.
Common Questions:
Can I use this 100171924 kit to convert from Natural Gas to Propane?
This valve is typically factory-set; however, conversion requires the specific orifice and jumper settings defined in your appliance's service manual. Always perform a combustion analysis after installation to verify CO2 and O2 levels.
What does a "GV Relay Fail" error mean on a Lochinvar Smart System?
While this error can sometimes indicate a control board issue, it is frequently triggered by a high amp draw from a failing gas valve solenoid. Testing the resistance and ensuring the 220-ohm circuit is intact are standard diagnostic steps before replacement.
Why is my boiler sparking but not igniting with a new valve?
Verify that the inlet gas pressure is between 4" and 14" w.c. and that the blower is creating sufficient negative pressure to pull the valve diaphragm open. Ensure the manual shut-off is fully engaged and the black connector is seated with dielectric grease if necessary.
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.
