Confirm that your existing switch is stamped with 101256-01 or has a set point of 0

High-Temp Lead Insulation: White Teflon-coated wiring prevents short circuits in high-ambient temperature environments near the heat exchanger

frequent low-pressure trips despite proper charge

Does this sensor require calibration upon installation

this genuine component ensures a precise factory fit without the need for field modifications

Trane WIR1922 Wiring Harness 328140-751 Confirm that your existing switchThe Trane WIR1922 Wiring Harness is a critical OEM 16 pin low voltage connection assembly engineered specifically for Trane and American Standard high efficiency HVAC systems. This 16 pin motor harness serves as the primary communication link between the system control board and variable speed ICM motor modules. Spanning approximately 12 to 34 inches depending on the specific revision, the harness features a heavy duty PVC jacket surrounding 22 gauge