Trane Defrost Sensor SEN01729 OEM

Trane SEN01729 Defrost Sensor | OEM Replacement Part

Keep your heat pump running efficiently even in the dead of winter with the Genuine Trane SEN01729 Defrost Sensor. Designed specifically for Trane and American Standard units, this high-precision thermistor ensures your system knows exactly when to initiate the defrost cycle, preventing ice buildup and protecting your compressor from unnecessary strain.

When your heat pump freezes up or fails to switch out of defrost mode, a faulty sensor is often the culprit. Replacing it with an OEM factory-authorized part ensures perfect calibration and long-term reliability that "universal" sensors simply can't match.

Why Choose the SEN01729 from Shorty’s HVAC?

• OEM Precision: This is a direct factory replacement, ensuring the resistance readings match your control board’s logic perfectly.
• Prevent Coil Freeze-Ups: Accurately monitors outdoor coil temperature to trigger defrost cycles only when necessary, saving energy and wear on the fan motor.
• Durable Construction: Built to withstand extreme outdoor temperature fluctuations and moisture.

Common Signs You Need a New Defrost Sensor:

1. Excessive Ice: The outdoor coil is completely encased in ice.
2. Short Cycling: The unit enters defrost mode too frequently or stays in it too long.
3. No Heat: The system stays in "cool" mode (defrost) and blows cold air inside for extended periods.