ICP Blower Motor for WPA4244000RKB1 — 1/2 HP OEM | Ships Today

Overview

This is a genuine OEM 1/2 HP blower motor (part number 1188128) for the ICP WPA4244000RKB1 system. The blower motor drives the indoor blower wheel that circulates conditioned air through the supply ductwork and back across the heat exchanger or coil. Rated at 1/2 horsepower, it provides the airflow your system needs to heat and cool efficiently. When a blower motor fails, you will typically notice weak or no airflow at the registers, a system that runs but does not move air, a humming motor that will not spin, overheating and tripping on the limit switch, or loud bearing noise. A failing motor can also cause the furnace to short-cycle as the heat exchanger overheats without adequate airflow.

Specifications

Compatibility

This blower motor is the factory-specified replacement for the ICP WPA4244000RKB1 (also sold under Tempstar, Heil, and Comfortmaker badges). Because ICP shares motors across closely related model families, this 1/2 HP motor may also service neighboring WPA-series units — always confirm the part number 1188128, horsepower, frame size, shaft diameter, and rotation against your existing motor before installing.

Installation Guide

1. Safety First — Disconnect power at the breaker and verify zero voltage at the motor terminals with a multimeter.
2. Access — Remove the blower compartment service panel to expose the blower assembly.
3. Document — Photograph all wire connections, capacitor leads, and the blower wheel position on the shaft before disconnecting anything.
4. Remove — Disconnect motor wiring, loosen the blower wheel set screw, pull the wheel, then unbolt the old motor from the mounting band or belly band.
5. Install — Mount the new motor at the same depth and orientation, reinstall the blower wheel with the set screw on the shaft flat, and reconnect every wire to match your photo.
6. Test — Restore power and verify the blower spins up freely, runs quietly, and delivers strong airflow at the registers.

Signs You Need a Replacement

• Blower hums but will not start or spins slowly
• Little or no airflow from supply vents
• Motor overheats and the system shuts down on the limit switch
• Grinding, squealing, or rattling bearing noise from the blower

Shipping & Returns

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