York S1-7975-388P/A Flame Sensor

As a seasoned technician, you know that a reliable York S1-7975-388P/A Flame Sensor is the frontline defense against hazardous unburned gas buildup. This genuine OEM York flame sensor (Part Number S1-7975-388P/A) is engineered for precise flame rectification, converting AC voltage into a DC microamp signal that the furnace control board requires to maintain the gas valve circuit. If you are seeing erratic shutdowns or short-cycling, checking for a faulty furnace flame sensor is your first move. This direct fit replacement features a durable metal rod and high-grade ceramic insulator designed to withstand high-temperature combustion environments in wide-ranging York gas-fired appliances, including popular DGAM, DGAT, and DLAS series furnaces. Ensure your furnace flame rod replacement provides the typical 2.0 to 6.0 microamp reading to verify a strong signal and long-term system stability.

• Precise Flame Detection: Eliminates nuisance "low flame signal" codes by providing accurate real-time feedback to the ignition control module.
• OEM Compatibility: Guaranteed fit for numerous York, Luxaire, and Coleman gas furnaces, specifically models like the DGAT070 and DGAM056.
• Enhanced Safety: Immediately triggers system shutdown if no flame is detected, preventing dangerous gas accumulation.
• Heavy-Duty Construction: The robust York S1-7975-388P/A is built to resist carbon fouling and oxidation better than generic aftermarket probes.

How do I test the York S1-7975-388P/A microamp signal?
Set your multimeter to the DC microamp (µA) scale and connect it in series between the sensor terminal and the control board lead. A healthy reading typically falls between 2 and 6 µA.

What are the signs of a failing flame sensor?
Common indicators include the furnace lighting for several seconds and then immediately shutting down, or the control board flashing a specific "no flame" or "weak flame" error code.

Can I clean this sensor instead of replacing it?
If the rod has light oxidation, extra-fine steel wool can restore signal strength. However, if the porcelain insulator is cracked or the metal is severely pitted, replacement is necessary to prevent electrical grounding issues.

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.