Rheem 51-109273-01 Pwm Motor 3/4 Hp

Product Description

The RHEEM 51-109273-01 is a Nidec-manufactured PWM (pulse-width modulation) motor rated at 3/4 HP, designed for use in RHEEM HVAC systems. PWM motors adjust speed in response to control signals, allowing the system to vary airflow based on demand rather than running at a fixed speed. This design improves efficiency and reduces energy consumption compared to single-speed motors. The unit is sold individually and is intended for installation by a licensed HVAC technician during a motor replacement service.

This motor is suited for residential HVAC applications where the original equipment calls for a PWM-controlled blower or fan motor. It is a direct replacement for failed or worn motors in systems that rely on variable-speed airflow control. The Nidec motor platform is commonly found in forced-air heating and cooling equipment. Technicians replacing the superseded part number 51-108733-01 will find this motor to be the updated OEM-specified substitute.

Key Features

• 3/4 HP rated output for reliable airflow delivery
• PWM control interface for variable-speed operation
• Nidec motor construction for OEM-grade reliability
• Replaces superseded part number 51-108733-01
• Sold as a single unit (each)

Compatibility

Designed as a direct OEM replacement for RHEEM systems originally equipped with part number 51-108733-01. Install only in applications that match the original motor specifications.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out all electrical power to the air handler or furnace before removing the existing motor. Verify that the replacement motor matches the original mounting configuration and PWM signal wiring requirements before finalizing the installation. Follow all applicable local codes and manufacturer service documentation during the swap.

Technical Specifications

• Horsepower: 3/4 HP
• Motor Type: PWM (Pulse-Width Modulation)
• Manufacturer: Nidec
• Unit of Measure: Each

Standard Information

• Brand: RHEEM
• Manufacturer Part Number: 51-109273-01