White Rodgers 790-843A1 Flame Sensor
The White Rodgers 790-843A1 Flame Sensor is a high-performance universal flame sensor designed for technicians who need a reliable, on-the-truck solution for furnace, boiler, and water heater repairs. Engineered to replace over 150 OEM part numbers, this flame rod is the direct replacement for the 10050-00042 (Vanguard Technology) and SP12144. Its high-temperature rod is rated to withstand up to 2200°F, ensuring long-term durability in the direct path of the burner flame. Because field conditions vary, the rod can be custom-tailored; use a hacksaw or sidecutters to achieve the correct length or use the included protective sleeve to bend the rod to match the specific OEM flame sensor geometry of the existing unit. This HVAC flame sensor facilitates flame rectification by providing a consistent DC microamp signal back to the integrated furnace control, preventing nuisance short cycling and safety lockouts.
Key Benefits- Universal Compatibility: Replaces over 150 part numbers, including popular models from Carrier, Goodman, Lennox, and Rheem.
- Field Customizable: The straight rod design allows for precise cutting and bending (up to 90 degrees) using the included angle guide.
- High Heat Resistance: Porcelain insulator and alumina ceramic base maintain 500 megaohms of resistance at peak operating temperatures.
- Complete Setup: Includes a 30-inch lead wire, 1/4-inch and 3/16-inch quick-connect terminals, and mounting screws for immediate installation.
- Professional Grade: CSA certified and built with OEM-approved materials to ensure reliable flame detection.
How do I test if a flame sensor is bad?
Using a multimeter set to DC microamps (µA), connect it in series with the flame sensor wire. A healthy White Rodgers 790-843A1 should typically produce a signal between 1 and 10 microamps while the burner is lit. If the signal is below the manufacturer's threshold (often 0.5–1.0 µA), it may trigger a lockout.
Can this sensor be used on any brand?
It is a universal replacement flame sensor compatible with most gas-fired residential heating equipment. However, always verify that the mounting bracket and rod position align with the original burner configuration to ensure the rod is fully engulfed in the flame.
What should I use to cut the rod?
For a clean break without damaging the structural integrity of the flame rod, use a standard hacksaw or high-quality sidecutters. Always apply the provided protective sleeve before gripping the rod with pliers to prevent oils or scratches from compromising sensing performance.
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: $23.08
-65%$23.08
$8.08White Rodgers 790-843A1 Flame Sensor
The White Rodgers 790-843A1 Flame Sensor is a high-performance universal flame sensor designed for technicians who need a reliable, on-the-truck solution for furnace, boiler, and water heater repairs. Engineered to replace over 150 OEM part numbers, this flame rod is the direct replacement for the 10050-00042 (Vanguard Technology) and SP12144. Its high-temperature rod is rated to withstand up to 2200°F, ensuring long-term durability in the direct path of the burner flame. Because field conditions vary, the rod can be custom-tailored; use a hacksaw or sidecutters to achieve the correct length or use the included protective sleeve to bend the rod to match the specific OEM flame sensor geometry of the existing unit. This HVAC flame sensor facilitates flame rectification by providing a consistent DC microamp signal back to the integrated furnace control, preventing nuisance short cycling and safety lockouts.
Key Benefits- Universal Compatibility: Replaces over 150 part numbers, including popular models from Carrier, Goodman, Lennox, and Rheem.
- Field Customizable: The straight rod design allows for precise cutting and bending (up to 90 degrees) using the included angle guide.
- High Heat Resistance: Porcelain insulator and alumina ceramic base maintain 500 megaohms of resistance at peak operating temperatures.
- Complete Setup: Includes a 30-inch lead wire, 1/4-inch and 3/16-inch quick-connect terminals, and mounting screws for immediate installation.
- Professional Grade: CSA certified and built with OEM-approved materials to ensure reliable flame detection.
How do I test if a flame sensor is bad?
Using a multimeter set to DC microamps (µA), connect it in series with the flame sensor wire. A healthy White Rodgers 790-843A1 should typically produce a signal between 1 and 10 microamps while the burner is lit. If the signal is below the manufacturer's threshold (often 0.5–1.0 µA), it may trigger a lockout.
Can this sensor be used on any brand?
It is a universal replacement flame sensor compatible with most gas-fired residential heating equipment. However, always verify that the mounting bracket and rod position align with the original burner configuration to ensure the rod is fully engulfed in the flame.
What should I use to cut the rod?
For a clean break without damaging the structural integrity of the flame rod, use a standard hacksaw or high-quality sidecutters. Always apply the provided protective sleeve before gripping the rod with pliers to prevent oils or scratches from compromising sensing performance.
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
Shipping & Returns
Shipping & Returns
Description
The White Rodgers 790-843A1 Flame Sensor is a high-performance universal flame sensor designed for technicians who need a reliable, on-the-truck solution for furnace, boiler, and water heater repairs. Engineered to replace over 150 OEM part numbers, this flame rod is the direct replacement for the 10050-00042 (Vanguard Technology) and SP12144. Its high-temperature rod is rated to withstand up to 2200°F, ensuring long-term durability in the direct path of the burner flame. Because field conditions vary, the rod can be custom-tailored; use a hacksaw or sidecutters to achieve the correct length or use the included protective sleeve to bend the rod to match the specific OEM flame sensor geometry of the existing unit. This HVAC flame sensor facilitates flame rectification by providing a consistent DC microamp signal back to the integrated furnace control, preventing nuisance short cycling and safety lockouts.
Key Benefits- Universal Compatibility: Replaces over 150 part numbers, including popular models from Carrier, Goodman, Lennox, and Rheem.
- Field Customizable: The straight rod design allows for precise cutting and bending (up to 90 degrees) using the included angle guide.
- High Heat Resistance: Porcelain insulator and alumina ceramic base maintain 500 megaohms of resistance at peak operating temperatures.
- Complete Setup: Includes a 30-inch lead wire, 1/4-inch and 3/16-inch quick-connect terminals, and mounting screws for immediate installation.
- Professional Grade: CSA certified and built with OEM-approved materials to ensure reliable flame detection.
How do I test if a flame sensor is bad?
Using a multimeter set to DC microamps (µA), connect it in series with the flame sensor wire. A healthy White Rodgers 790-843A1 should typically produce a signal between 1 and 10 microamps while the burner is lit. If the signal is below the manufacturer's threshold (often 0.5–1.0 µA), it may trigger a lockout.
Can this sensor be used on any brand?
It is a universal replacement flame sensor compatible with most gas-fired residential heating equipment. However, always verify that the mounting bracket and rod position align with the original burner configuration to ensure the rod is fully engulfed in the flame.
What should I use to cut the rod?
For a clean break without damaging the structural integrity of the flame rod, use a standard hacksaw or high-quality sidecutters. Always apply the provided protective sleeve before gripping the rod with pliers to prevent oils or scratches from compromising sensing performance.
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.
