if the reading is consistently below 20-25 mV while the tip is engulfed in a blue flame

the Lennox X8789 and X878901 are identical parts and can be used interchangeably in the PCO16-28 system

Common Questions Is the Trane CTR2579 compatible with American Standard units

Precision 1

The Carrier HN51KC024 is a heavy-duty

Trane SEN0432 Flame Sensor Els PW 17895 if the reading is consistentlyThe Trane SEN0432 is an OEM mercury flame sensor designed for high precision flame rectification within residential and commercial gas furnaces. This critical safety component features a 48 inch lead length, providing the necessary reach for complex burner manifold configurations common in older high efficiency Trane and American Standard units. Equipped with a 3 pin plug in interface, the SEN0432 ensures a secure electrical connection to the