The Trane BLW1139 Inducer Blower is a critical single-stage draft inducer engineered for high-efficiency furnace combustion systems. As the direct OEM replacement for BLW0861, this motor assembly ensures proper venting of flue gases by creating a steady vacuum within the heat exchanger. This Trane centrifugal blower is designed to meet strict furnace draft inducer specifications, maintaining the pressure switch closure required for the ignition sequence. Constructed with heavy-duty internal bearings and a balanced impeller, it minimizes mechanical vibration and noise during operation. For technicians performing HVAC furnace repair, the BLW1139 offers a precise footprint for rapid installation, ensuring the combustion air system operates within the manufacturer’s specified CFM and static pressure requirements. Replacing a failed BLW1139 draft motor restores equipment reliability and prevents common pressure switch fault codes in compatible Trane and American Standard furnaces. Key Benefits Direct OEM Compatibility: Serves as the factory-authorized replacement for BLW0861, ensuring electrical and mechanical alignment without field modification. Efficient Combustion Airflow: Specifically calibrated to provide the necessary 1-stage draft inducer flow rates for optimal fuel-to-air ratios. Durable Housing Construction: Built to withstand high-temperature flue environments while preventing housing corrosion. Balanced Impeller Assembly: Pre-balanced at the factory to reduce shaft play and extend the service life of the motor bearings. Common Questions Is the BLW1139 a direct swap for the BLW0861? Yes, the BLW1139 blower assembly is the current production replacement for the obsolete BLW0861, fitting the same bolt pattern and wiring harness. Will this motor resolve a pressure switch circuit open error? If the motor is failing to reach nominal RPM or the housing is cracked, the vacuum will drop; replacing the draft inducer assembly typically resolves these draft-related fault codes. Does this assembly include the cooling fan and impeller? This is a complete Trane furnace inducer kit including the motor, internal impeller, and housing, ready for direct mounting to the collector box. This item is not eligible for free shipping. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
