Lennox 84W15 Furnace Motor Control Module

Product Description

The LENNOX 84W15 is a motor control module designed for use in gas furnace systems. It manages the operation of the blower motor, coordinating motor startup, speed staging, and shutdown sequences as directed by the furnace control board. This module is a direct replacement component installed by licensed HVAC technicians during scheduled maintenance or motor-related fault diagnosis. Weighing 3.0 pounds, it is a self-contained unit suited for straightforward swap-out service calls where the existing module has failed or is producing fault codes.

This motor control module is intended for residential furnace applications where the blower motor requires a dedicated control interface. It is typically found in forced-air heating systems and handles the logic between the main control board and the blower assembly. HVAC technicians will encounter this part during troubleshooting of airflow faults, blower motor failures, or after retrieving diagnostic codes that point to motor control circuit issues.

Key Features

• Designed as a motor control module specifically for furnace blower motor management
• Self-contained module format supports efficient field replacement
• Compatible with forced-air gas furnace systems requiring a dedicated motor control interface
• Weighs 3.0 pounds for straightforward handling during installation

Compatibility

Designed as an OEM-style replacement motor control module for LENNOX residential gas furnace systems.

Installation Notes

Installation should be performed by a licensed HVAC technician. Power down the furnace at the disconnect switch and confirm zero voltage at the module terminals before removing the existing unit. Secure all wiring connections firmly before restoring power and verify proper blower operation through a full heating cycle. Follow applicable local codes and manufacturer service documentation during replacement.

Technical Specifications

• Type: Control Module
• Used On: Furnace
• Weight: 3.0 pounds

Standard Information

• Brand: LENNOX
• Manufacturer Part Number: 84W15