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When troubleshooting a system that won't ignite or is throwing a pressure switch lockout code
the compressor humming but failing to start
If the burner ignites but goes out after 2 to 5 seconds
It retains the same dimensions and technical capabilities as the original 37-101 model seal
Use a multimeter to check for continuity across the leads
York S1-025-30801-000 Flame Sensor When troubleshooting a system thatThe York S1 025 30801 000 Flame Sensor is a critical safety component designed for precise flame rectification in residential and commercial gas furnaces. As a veteran technician knows, this OEM York furnace part is essential for monitoring the burner assembly and ensuring the control board receives the necessary microamp signal to maintain the heating cycle. Operating as a stainless steel rod encased in high grade porcelain, this sensor detects the