ICP Blower Motor for WFMR090B042B3 — 1/3 HP 3-Speed | Ships Today

Overview

This genuine OEM blower motor (part #1185856) drives the indoor air handler on the ICP / Tempstar / Heil WFMR090B042B3 furnace. Rated at 1/3 HP with 3 speeds, it spins the blower wheel that circulates conditioned air through the ductwork in both heating and cooling modes. The multi-speed design lets the installer tap the correct airflow for the system's tonnage and heat rise. Blower motors fail from worn bearings, an open or shorted winding, or a thermal overload that trips repeatedly. Symptoms include no airflow, loud grinding or humming, intermittent cut-outs as the internal overload trips, or a motor that runs hot to the touch.

Specifications

Compatibility

Engineered as a direct OEM replacement for the ICP Tempstar Heil WFMR090B042B3 furnace blower and compatible ICP-family models using the same 1/3 HP 3-speed motor. Match the shaft diameter, rotation, and speed-tap wiring to your original before installing.

Installation Guide

1. Safety First — Disconnect power at the switch and breaker; verify zero voltage with a multimeter.
2. Access — Remove the blower compartment service panel and slide out the blower assembly.
3. Document — Photograph the speed-tap wiring, capacitor leads, and blower wheel position on the shaft.
4. Remove — Loosen the wheel set screw, pull the motor from the housing, and transfer the blower wheel and mounting band.
5. Install — Mount the new motor, set the wheel position, and reconnect the speed taps and run capacitor per your photo.
6. Test — Restore power and verify smooth, quiet operation at the selected speeds in heat and cool.

Signs You Need a Replacement

• No airflow from the registers with the furnace calling
• Loud grinding, squealing, or humming from the blower
• Motor cycles on and off as the thermal overload trips
• Motor housing is hot to the touch or smells burnt

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.