York S1-025-27773-700 Flame Sensor 1/4 x 1/32 Inch Male QC

The York S1-025-27773-700 is a flame sensor designed for use in York HVAC systems. This critical safety component detects the presence of flame in gas-fired furnaces and heating equipment, ensuring safe operation by confirming ignition has occurred.

Key Features:

• Genuine York OEM replacement part for reliable performance
• 1/4 inch x 1/32 inch sensor probe dimensions
• Male quick connect (QC) terminal for easy installation
• Flame rectification technology for accurate flame detection
• Direct replacement for worn or failed flame sensors

Flame sensors work by detecting the electrical current produced by a flame through a process called flame rectification. When the sensor fails, the furnace will typically shut down after ignition as a safety precaution. Regular replacement of this component helps maintain safe and efficient furnace operation.